400526051 has 4 divisors (see below), whose sum is σ = 400642704. Its totient is φ = 400409400.

The previous prime is 400525991. The next prime is 400526053. The reversal of 400526051 is 150625004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400526051 - 2⁶ = 400525987 is a prime.

It is a super-2 number, since 2×400526051² = 320842235059309202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400526053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53015 + ... + 60096.

It is an arithmetic number, because the mean of its divisors is an integer number (100160676).

Almost surely, 2^400526051 is an apocalyptic number.

400526051 is a deficient number, since it is larger than the sum of its proper divisors (116653).

400526051 is a wasteful number, since it uses less digits than its factorization.

400526051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116652.

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

The square root of 400526051 is about 20013.1469539401. The cubic root of 400526051 is about 737.1291563125.

The spelling of 400526051 in words is "four hundred million, five hundred twenty-six thousand, fifty-one".