3902192881 has 8 divisors (see below), whose sum is σ = 3957065640. Its totient is φ = 3847358592.

The previous prime is 3902192863. The next prime is 3902192891. The reversal of 3902192881 is 1882912093.

It can be written as a sum of positive squares in 4 ways, for example, as 1916688400 + 1985504481 = 43780^2 + 44559^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3902192881 is a prime.

It is a super-2 number, since 2×3902192881² = 30454218561054160322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3902192891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239511 + ... + 255283.

It is an arithmetic number, because the mean of its divisors is an integer number (494633205).

Almost surely, 2^3902192881 is an apocalyptic number.

It is an amenable number.

3902192881 is a deficient number, since it is larger than the sum of its proper divisors (54872759).

3902192881 is a wasteful number, since it uses less digits than its factorization.

3902192881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19235.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 3902192881 is about 62467.5346159907. The cubic root of 3902192881 is about 1574.3558808653.

The spelling of 3902192881 in words is "three billion, nine hundred two million, one hundred ninety-two thousand, eight hundred eighty-one".