3881372490 has 48 divisors (see below), whose sum is σ = 10101024648. Its totient is φ = 1034062848.

The previous prime is 3881372489. The next prime is 3881372513. The reversal of 3881372490 is 942731883.

3881372490 is a `hidden beast` number, since 3 + 88 + 13 + 72 + 490 = 666.

3881372490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2970359001 + 911013489 = 54501^2 + 30183^2 .

It is a super-2 number, since 2×3881372490² = 30130104812257600200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79074 + ... + 118386.

Almost surely, 2^3881372490 is an apocalyptic number.

3881372490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3881372490 is an abundant number, since it is smaller than the sum of its proper divisors (6219652158).

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

3881372490 is a wasteful number, since it uses less digits than its factorization.

3881372490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40423 (or 40420 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 3881372490 is about 62300.6620350057. The cubic root of 3881372490 is about 1571.5508618210.

The spelling of 3881372490 in words is "three billion, eight hundred eighty-one million, three hundred seventy-two thousand, four hundred ninety".