400553416 has 16 divisors (see below), whose sum is σ = 771336540. Its totient is φ = 194863680.

The previous prime is 400553407. The next prime is 400553437. The reversal of 400553416 is 614355004.

It can be written as a sum of positive squares in 2 ways, for example, as 358950916 + 41602500 = 18946^2 + 6450^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676315 + ... + 676906.

Almost surely, 2^400553416 is an apocalyptic number.

It is an amenable number.

400553416 is a deficient number, since it is larger than the sum of its proper divisors (370783124).

400553416 is a wasteful number, since it uses less digits than its factorization.

400553416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353264 (or 1353260 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 400553416 is about 20013.8306178502. The cubic root of 400553416 is about 737.1459434686.

The spelling of 400553416 in words is "four hundred million, five hundred fifty-three thousand, four hundred sixteen".