3865231400 has 24 divisors (see below), whose sum is σ = 8986663470. Its totient is φ = 1546092480.

The previous prime is 3865231387. The next prime is 3865231439. The reversal of 3865231400 is 41325683.

It can be written as a sum of positive squares in 3 ways, for example, as 1412406724 + 2452824676 = 37582^2 + 49526^2 .

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, 9662879 + ... + 9663278.

Almost surely, 2^3865231400 is an apocalyptic number.

It is an amenable number.

3865231400 is an abundant number, since it is smaller than the sum of its proper divisors (5121432070).

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

3865231400 is a wasteful number, since it uses less digits than its factorization.

3865231400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19326173 (or 19326164 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 3865231400 is about 62170.9851940598. The cubic root of 3865231400 is about 1569.3693492620.

The spelling of 3865231400 in words is "three billion, eight hundred sixty-five million, two hundred thirty-one thousand, four hundred".