3908396040 has 32 divisors (see below), whose sum is σ = 11725188480. Its totient is φ = 1042238912.

The previous prime is 3908396039. The next prime is 3908396069. The reversal of 3908396040 is 406938093.

It is a junction number, because it is equal to n+sod(n) for n = 3908395983 and 3908396001.

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, 16284864 + ... + 16285103.

It is an arithmetic number, because the mean of its divisors is an integer number (366412140).

Almost surely, 2^3908396040 is an apocalyptic number.

3908396040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3908396040 is an abundant number, since it is smaller than the sum of its proper divisors (7816792440).

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

3908396040 is a wasteful number, since it uses less digits than its factorization.

3908396040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32569981 (or 32569977 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 3908396040 is about 62517.1659626378. The cubic root of 3908396040 is about 1575.1896692721.

The spelling of 3908396040 in words is "three billion, nine hundred eight million, three hundred ninety-six thousand, forty".