400262072 has 16 divisors (see below), whose sum is σ = 857704560. Its totient is φ = 171540864.

The previous prime is 400262029. The next prime is 400262117. The reversal of 400262072 is 270262004.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3573713 + ... + 3573824.

It is an arithmetic number, because the mean of its divisors is an integer number (53606535).

Almost surely, 2^400262072 is an apocalyptic number.

It is an amenable number.

400262072 is an abundant number, since it is smaller than the sum of its proper divisors (457442488).

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

400262072 is a wasteful number, since it uses less digits than its factorization.

400262072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7147550 (or 7147546 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 400262072 is about 20006.5507271993. The cubic root of 400262072 is about 736.9671781822.

The spelling of 400262072 in words is "four hundred million, two hundred sixty-two thousand, seventy-two".