400354632 has 48 divisors (see below), whose sum is σ = 1085460480. Its totient is φ = 133308000.

The previous prime is 400354631. The next prime is 400354637. The reversal of 400354632 is 236453004.

It is a junction number, because it is equal to n+sod(n) for n = 400354596 and 400354605.

It is not an unprimeable number, because it can be changed into a prime (400354631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80457 + ... + 85287.

It is an arithmetic number, because the mean of its divisors is an integer number (22613760).

Almost surely, 2^400354632 is an apocalyptic number.

It is an amenable number.

400354632 is an abundant number, since it is smaller than the sum of its proper divisors (685105848).

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

400354632 is a wasteful number, since it uses less digits than its factorization.

400354632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5994 (or 5987 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 400354632 is about 20008.8638358104. The cubic root of 400354632 is about 737.0239813198.

The spelling of 400354632 in words is "four hundred million, three hundred fifty-four thousand, six hundred thirty-two".