3867201900 has 72 divisors (see below), whose sum is σ = 12432346640. Its totient is φ = 1031253120.

The previous prime is 3867201883. The next prime is 3867201901. The reversal of 3867201900 is 91027683.

It is a super-2 number, since 2×3867201900² = 29910501070727220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3867201901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 713449 + ... + 718848.

Almost surely, 2^3867201900 is an apocalyptic number.

3867201900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3867201900 is an abundant number, since it is smaller than the sum of its proper divisors (8565144740).

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

3867201900 is a wasteful number, since it uses less digits than its factorization.

3867201900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432320 (or 1432307 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 3867201900 is about 62186.8305994123. The cubic root of 3867201900 is about 1569.6359928012.

The spelling of 3867201900 in words is "three billion, eight hundred sixty-seven million, two hundred one thousand, nine hundred".