208620330400 has 36 divisors (see below), whose sum is σ = 509294383542. Its totient is φ = 83448131840.

The previous prime is 208620330371. The next prime is 208620330407. The reversal of 208620330400 is 4033026802.

It can be written as a sum of positive squares in 3 ways, for example, as 142639160976 + 65981169424 = 377676^2 + 256868^2 .

It is not an unprimeable number, because it can be changed into a prime (208620330407) 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, 130386907 + ... + 130388506.

Almost surely, 2^208620330400 is an apocalyptic number.

208620330400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208620330400 is an abundant number, since it is smaller than the sum of its proper divisors (300674053142).

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

208620330400 is a wasteful number, since it uses less digits than its factorization.

208620330400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260775433 (or 260775420 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 208620330400 in words is "two hundred eight billion, six hundred twenty million, three hundred thirty thousand, four hundred".