400296016 has 10 divisors (see below), whose sum is σ = 775573562. Its totient is φ = 200148000.

The previous prime is 400295983. The next prime is 400296031. The reversal of 400296016 is 610692004.

It can be written as a sum of positive squares in only one way, i.e., 368486416 + 31809600 = 19196^2 + 5640^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12509235 + ... + 12509266.

Almost surely, 2^400296016 is an apocalyptic number.

It is an amenable number.

400296016 is a deficient number, since it is larger than the sum of its proper divisors (375277546).

400296016 is a wasteful number, since it uses less digits than its factorization.

400296016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25018509 (or 25018503 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 400296016 is about 20007.3990313584. The cubic root of 400296016 is about 736.9880102891.

The spelling of 400296016 in words is "four hundred million, two hundred ninety-six thousand, sixteen".