207000400 has 30 divisors (see below), whose sum is σ = 497319422. Its totient is φ = 82800000.

The previous prime is 207000377. The next prime is 207000401. The reversal of 207000400 is 4000702.

It can be written as a sum of positive squares in 3 ways, for example, as 32126224 + 174874176 = 5668^2 + 13224^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207000401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 258351 + ... + 259150.

Almost surely, 2^207000400 is an apocalyptic number.

207000400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

207000400 is an abundant number, since it is smaller than the sum of its proper divisors (290319022).

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

207000400 is a wasteful number, since it uses less digits than its factorization.

207000400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517519 (or 517508 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 13.

The square root of 207000400 is about 14387.5084708924. The cubic root of 207000400 is about 591.5485509992.

The spelling of 207000400 in words is "two hundred seven million, four hundred", and thus it is an aban number.