401405351 has 4 divisors (see below), whose sum is σ = 401445432. Its totient is φ = 401365272.

The previous prime is 401405339. The next prime is 401405359. The reversal of 401405351 is 153504104.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401405351 is a prime.

It is a super-2 number, since 2×401405351² = 322252511622866402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401405359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9356 + ... + 29838.

It is an arithmetic number, because the mean of its divisors is an integer number (100361358).

Almost surely, 2^401405351 is an apocalyptic number.

401405351 is a deficient number, since it is larger than the sum of its proper divisors (40081).

401405351 is a wasteful number, since it uses less digits than its factorization.

401405351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40080.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 401405351 is about 20035.1029695382. The cubic root of 401405351 is about 737.6681840316.

Adding to 401405351 its reverse (153504104), we get a palindrome (554909455).

It can be divided in two parts, 4014053 and 51, that added together give a palindrome (4014104).

The spelling of 401405351 in words is "four hundred one million, four hundred five thousand, three hundred fifty-one".