400607494288 has 20 divisors (see below), whose sum is σ = 780663597948. Its totient is φ = 199145920640.

The previous prime is 400607494271. The next prime is 400607494321. The reversal of 400607494288 is 882494706004.

It can be written as a sum of positive squares in 2 ways, for example, as 257142296464 + 143465197824 = 507092^2 + 378768^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 72361303 + ... + 72366838.

Almost surely, 2^400607494288 is an apocalyptic number.

It is an amenable number.

400607494288 is a deficient number, since it is larger than the sum of its proper divisors (380056103660).

400607494288 is a wasteful number, since it uses less digits than its factorization.

400607494288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144728322 (or 144728316 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 400607494288 in words is "four hundred billion, six hundred seven million, four hundred ninety-four thousand, two hundred eighty-eight".