401364520 has 16 divisors (see below), whose sum is σ = 903070260. Its totient is φ = 160545792.

The previous prime is 401364499. The next prime is 401364521. The reversal of 401364520 is 25463104.

It can be written as a sum of positive squares in 2 ways, for example, as 401361156 + 3364 = 20034^2 + 58^2 .

It is a super-2 number, since 2×401364520² = 322186955829660800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401364521) 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, 5017017 + ... + 5017096.

Almost surely, 2^401364520 is an apocalyptic number.

401364520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401364520 is an abundant number, since it is smaller than the sum of its proper divisors (501705740).

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

401364520 is a wasteful number, since it uses less digits than its factorization.

401364520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10034124 (or 10034120 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 401364520 is about 20034.0839570967. The cubic root of 401364520 is about 737.6431712850.

The spelling of 401364520 in words is "four hundred one million, three hundred sixty-four thousand, five hundred twenty".