3869905920 has 88 divisors (see below), whose sum is σ = 12377701344. Its totient is φ = 1031970816.

The previous prime is 3869905913. The next prime is 3869905931. The reversal of 3869905920 is 295099683.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110614 + ... + 141333.

Almost surely, 2^3869905920 is an apocalyptic number.

3869905920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3869905920 is an abundant number, since it is smaller than the sum of its proper divisors (8507795424).

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

3869905920 is a wasteful number, since it uses less digits than its factorization.

3869905920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251975 (or 251957 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 51.

The square root of 3869905920 is about 62208.5678986424. The cubic root of 3869905920 is about 1570.0017471954.

The spelling of 3869905920 in words is "three billion, eight hundred sixty-nine million, nine hundred five thousand, nine hundred twenty".