3890378788 has 24 divisors (see below), whose sum is σ = 6865334784. Its totient is φ = 1928877600.

The previous prime is 3890378771. The next prime is 3890378809. The reversal of 3890378788 is 8878730983.

3890378788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3890378788² = 30270094228240697888, which contains 22 as substring.

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, 1104406 + ... + 1107922.

It is an arithmetic number, because the mean of its divisors is an integer number (286055616).

Almost surely, 2^3890378788 is an apocalyptic number.

It is an amenable number.

3890378788 is a deficient number, since it is larger than the sum of its proper divisors (2974955996).

3890378788 is a wasteful number, since it uses less digits than its factorization.

3890378788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5763 (or 5761 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 61.

The square root of 3890378788 is about 62372.9010708978. The cubic root of 3890378788 is about 1572.7654598378.

The spelling of 3890378788 in words is "three billion, eight hundred ninety million, three hundred seventy-eight thousand, seven hundred eighty-eight".