400452255 has 120 divisors (see below), whose sum is σ = 884912688. Its totient is φ = 172150272.

The previous prime is 400452229. The next prime is 400452313. The reversal of 400452255 is 552254004.

400452255 is a `hidden beast` number, since 400 + 4 + 5 + 2 + 255 = 666.

It is not a de Polignac number, because 400452255 - 2⁵ = 400452223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 336772 + ... + 337958.

Almost surely, 2^400452255 is an apocalyptic number.

400452255 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

400452255 is an abundant number, since it is smaller than the sum of its proper divisors (484460433).

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

400452255 is a wasteful number, since it uses less digits than its factorization.

400452255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 1219 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 400452255 is about 20011.3031809525. The cubic root of 400452255 is about 737.0838820836.

The spelling of 400452255 in words is "four hundred million, four hundred fifty-two thousand, two hundred fifty-five".