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401922 = 235827
BaseRepresentation
bin1100010001000000010
3202102100000
41202020002
5100330142
612340430
73262533
oct1421002
9672300
10401922
11254a74
12174716
13110c31
14a668a
157e14c
hex62202

401922 has 24 divisors (see below), whose sum is σ = 904176. Its totient is φ = 133812.

The previous prime is 401917. The next prime is 401939. The reversal of 401922 is 229104.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 401895 and 401904.

It is an unprimeable number.

401922 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73 + ... + 899.

It is an arithmetic number, because the mean of its divisors is an integer number (37674).

2401922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452088).

401922 is an abundant number, since it is smaller than the sum of its proper divisors (502254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401922 is an equidigital number, since it uses as much as digits as its factorization.

401922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 832 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 401922 is about 633.9731855528. The cubic root of 401922 is about 73.7984532692.

The spelling of 401922 in words is "four hundred one thousand, nine hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 827 1654 2481 4962 7443 14886 22329 44658 66987 133974 200961 401922