3945490412 has 24 divisors (see below), whose sum is σ = 7102876704. Its totient is φ = 1916272512.

The previous prime is 3945490387. The next prime is 3945490433. The reversal of 3945490412 is 2140945493.

It is a self number, because there is not a number n which added to its sum of digits gives 3945490412.

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, 69713 + ... + 112919.

It is an arithmetic number, because the mean of its divisors is an integer number (295953196).

Almost surely, 2^3945490412 is an apocalyptic number.

It is an amenable number.

3945490412 is a deficient number, since it is larger than the sum of its proper divisors (3157386292).

3945490412 is a wasteful number, since it uses less digits than its factorization.

3945490412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43865 (or 43863 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 3945490412 is about 62813.1388484925. The cubic root of 3945490412 is about 1580.1573325141.

The spelling of 3945490412 in words is "three billion, nine hundred forty-five million, four hundred ninety thousand, four hundred twelve".