400574742 has 16 divisors (see below), whose sum is σ = 816266160. Its totient is φ = 131005472.

The previous prime is 400574737. The next prime is 400574743. The reversal of 400574742 is 247475004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400574743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 629517 + ... + 630152.

It is an arithmetic number, because the mean of its divisors is an integer number (51016635).

Almost surely, 2^400574742 is an apocalyptic number.

400574742 is an abundant number, since it is smaller than the sum of its proper divisors (415691418).

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

400574742 is a wasteful number, since it uses less digits than its factorization.

400574742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259727.

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 400574742 is about 20014.3633923240. The cubic root of 400574742 is about 737.1590254487.

The spelling of 400574742 in words is "four hundred million, five hundred seventy-four thousand, seven hundred forty-two".