308203643900 has 18 divisors (see below), whose sum is σ = 668801907480. Its totient is φ = 123281457520.

The previous prime is 308203643873. The next prime is 308203643939. The reversal of 308203643900 is 9346302803.

It is a super-2 number, since 2×308203643900² (a number of 24 digits) contains 22 as substring.

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, 1541018120 + ... + 1541018319.

Almost surely, 2^308203643900 is an apocalyptic number.

It is an amenable number.

308203643900 is an abundant number, since it is smaller than the sum of its proper divisors (360598263580).

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

308203643900 is a wasteful number, since it uses less digits than its factorization.

308203643900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082036453 (or 3082036446 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 308203643900 in words is "three hundred eight billion, two hundred three million, six hundred forty-three thousand, nine hundred".