3821900 has 18 divisors (see below), whose sum is σ = 8293740. Its totient is φ = 1528720.

The previous prime is 3821893. The next prime is 3821903. The reversal of 3821900 is 91283.

It is a super-2 number, since 2×3821900² = 29213839220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3821903) 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, 19010 + ... + 19209.

Almost surely, 2^3821900 is an apocalyptic number.

It is an amenable number.

3821900 is an abundant number, since it is smaller than the sum of its proper divisors (4471840).

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

3821900 is a wasteful number, since it uses less digits than its factorization.

3821900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38233 (or 38226 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 3821900 is about 1954.9680304291. The cubic root of 3821900 is about 156.3482795037.

The spelling of 3821900 in words is "three million, eight hundred twenty-one thousand, nine hundred".