3890402038 has 16 divisors (see below), whose sum is σ = 6285597120. Its totient is φ = 1799964936.

The previous prime is 3890402023. The next prime is 3890402051. The reversal of 3890402038 is 8302040983.

It is a junction number, because it is equal to n+sod(n) for n = 3890401988 and 3890402006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1188820 + ... + 1192087.

It is an arithmetic number, because the mean of its divisors is an integer number (392849820).

Almost surely, 2^3890402038 is an apocalyptic number.

3890402038 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3890402038 is a deficient number, since it is larger than the sum of its proper divisors (2395195082).

3890402038 is a wasteful number, since it uses less digits than its factorization.

3890402038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380971.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 3890402038 is about 62373.0874496365. The cubic root of 3890402038 is about 1572.7685929281.

The spelling of 3890402038 in words is "three billion, eight hundred ninety million, four hundred two thousand, thirty-eight".