400550152 has 32 divisors (see below), whose sum is σ = 785220480. Its totient is φ = 191192320.

The previous prime is 400550119. The next prime is 400550201. The reversal of 400550152 is 251055004.

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 7 ways as a sum of consecutive naturals, for example, 107277 + ... + 110947.

It is an arithmetic number, because the mean of its divisors is an integer number (24538140).

Almost surely, 2^400550152 is an apocalyptic number.

It is an amenable number.

400550152 is a deficient number, since it is larger than the sum of its proper divisors (384670328).

400550152 is a wasteful number, since it uses less digits than its factorization.

400550152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4293 (or 4289 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 400550152 is about 20013.7490740741. The cubic root of 400550152 is about 737.1439411964.

The spelling of 400550152 in words is "four hundred million, five hundred fifty thousand, one hundred fifty-two".