3881508438 has 32 divisors (see below), whose sum is σ = 7823848032. Its totient is φ = 1283731200.

The previous prime is 3881508437. The next prime is 3881508439. The reversal of 3881508438 is 8348051883.

It is an interprime number because it is at equal distance from previous prime (3881508437) and next prime (3881508439).

It is a super-2 number, since 2×3881508438² = 30132215508530399688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3881508431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496770 + ... + 504522.

It is an arithmetic number, because the mean of its divisors is an integer number (244495251).

Almost surely, 2^3881508438 is an apocalyptic number.

3881508438 is an abundant number, since it is smaller than the sum of its proper divisors (3942339594).

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

3881508438 is a wasteful number, since it uses less digits than its factorization.

3881508438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8400.

The product of its (nonzero) digits is 737280, while the sum is 48.

The square root of 3881508438 is about 62301.7530892992. The cubic root of 3881508438 is about 1571.5692098584.

The spelling of 3881508438 in words is "three billion, eight hundred eighty-one million, five hundred eight thousand, four hundred thirty-eight".