400453025 has 48 divisors (see below), whose sum is σ = 618115200. Its totient is φ = 251112960.

The previous prime is 400452991. The next prime is 400453061. The reversal of 400453025 is 520354004.

It is not a de Polignac number, because 400453025 - 2¹⁸ = 400190881 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94349 + ... + 98501.

It is an arithmetic number, because the mean of its divisors is an integer number (12877400).

Almost surely, 2^400453025 is an apocalyptic number.

It is an amenable number.

400453025 is a deficient number, since it is larger than the sum of its proper divisors (217662175).

400453025 is a wasteful number, since it uses less digits than its factorization.

400453025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218 (or 4213 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 400453025 is about 20011.3224200701. The cubic root of 400453025 is about 737.0843545113.

The spelling of 400453025 in words is "four hundred million, four hundred fifty-three thousand, twenty-five".