3161409990 has 64 divisors (see below), whose sum is σ = 7662200832. Its totient is φ = 834768000.

The previous prime is 3161409917. The next prime is 3161409997. The reversal of 3161409990 is 999041613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3161409997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1688755 + ... + 1690625.

It is an arithmetic number, because the mean of its divisors is an integer number (119721888).

Almost surely, 2^3161409990 is an apocalyptic number.

3161409990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3161409990 is an abundant number, since it is smaller than the sum of its proper divisors (4500790842).

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

3161409990 is a wasteful number, since it uses less digits than its factorization.

3161409990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 3161409990 is about 56226.4171897872. The cubic root of 3161409990 is about 1467.6650097365.

The spelling of 3161409990 in words is "three billion, one hundred sixty-one million, four hundred nine thousand, nine hundred ninety".