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401201405 = 5117294571
BaseRepresentation
bin10111111010011…
…101100011111101
31000221221010212022
4113322131203331
51310201421110
6103451045525
712641104253
oct2772354375
91027833768
10401201405
11196516610
12b24408a5
13651723a7
143b3d85d3
152534e755
hex17e9d8fd

401201405 has 8 divisors (see below), whose sum is σ = 525209184. Its totient is φ = 291782800.

The previous prime is 401201401. The next prime is 401201407. The reversal of 401201405 is 504102104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 401201405 - 22 = 401201401 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 3647231 + ... + 3647340.

It is an arithmetic number, because the mean of its divisors is an integer number (65651148).

Almost surely, 2401201405 is an apocalyptic number.

It is an amenable number.

401201405 is a deficient number, since it is larger than the sum of its proper divisors (124007779).

401201405 is a wasteful number, since it uses less digits than its factorization.

401201405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7294587.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 401201405 is about 20030.0126060869. The cubic root of 401201405 is about 737.5432314024.

Adding to 401201405 its reverse (504102104), we get a palindrome (905303509).

The spelling of 401201405 in words is "four hundred one million, two hundred one thousand, four hundred five".