400053200 has 30 divisors (see below), whose sum is σ = 961128774. Its totient is φ = 160021120.

The previous prime is 400053193. The next prime is 400053221. The reversal of 400053200 is 2350004.

It can be written as a sum of positive squares in 3 ways, for example, as 47665216 + 352387984 = 6904^2 + 18772^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 499667 + ... + 500466.

Almost surely, 2^400053200 is an apocalyptic number.

400053200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400053200 is an abundant number, since it is smaller than the sum of its proper divisors (561075574).

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

400053200 is a wasteful number, since it uses less digits than its factorization.

400053200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000151 (or 1000140 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 400053200 is about 20001.3299557804. The cubic root of 400053200 is about 736.8389633593.

The spelling of 400053200 in words is "four hundred million, fifty-three thousand, two hundred".