Search a number
401201406 = 23222288967
BaseRepresentation
bin10111111010011…
…101100011111110
31000221221010212100
4113322131203332
51310201421111
6103451045530
712641104254
oct2772354376
91027833770
10401201406
11196516611
12b24408a6
13651723a8
143b3d85d4
152534e756
hex17e9d8fe

401201406 has 12 divisors (see below), whose sum is σ = 869269752. Its totient is φ = 133733796.

The previous prime is 401201401. The next prime is 401201407. The reversal of 401201406 is 604102104.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 22288967 = 401201406 / (4 + 0 + 1 + 2 + 0 + 1 + 4 + 0 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401201401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11144466 + ... + 11144501.

It is an arithmetic number, because the mean of its divisors is an integer number (72439146).

Almost surely, 2401201406 is an apocalyptic number.

401201406 is an abundant number, since it is smaller than the sum of its proper divisors (468068346).

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

401201406 is a wasteful number, since it uses less digits than its factorization.

401201406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22288975 (or 22288972 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 401201406 is about 20030.0126310494. The cubic root of 401201406 is about 737.5432320152.

The spelling of 401201406 in words is "four hundred one million, two hundred one thousand, four hundred six".