3905165970 has 24 divisors (see below), whose sum is σ = 10153431756. Its totient is φ = 1041377568.

The previous prime is 3905165951. The next prime is 3905165987. The reversal of 3905165970 is 795615093.

3905165970 is a `hidden beast` number, since 3 + 9 + 0 + 51 + 6 + 597 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3862746801 + 42419169 = 62151^2 + 6513^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21695277 + ... + 21695456.

Almost surely, 2^3905165970 is an apocalyptic number.

3905165970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3905165970 is an abundant number, since it is smaller than the sum of its proper divisors (6248265786).

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

3905165970 is a wasteful number, since it uses less digits than its factorization.

3905165970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43390746 (or 43390743 counting only the distinct ones).

The product of its (nonzero) digits is 255150, while the sum is 45.

The square root of 3905165970 is about 62491.3271582545. The cubic root of 3905165970 is about 1574.7556143871.

The spelling of 3905165970 in words is "three billion, nine hundred five million, one hundred sixty-five thousand, nine hundred seventy".