3945669024 has 48 divisors (see below), whose sum is σ = 11298964320. Its totient is φ = 1195656960.

The previous prime is 3945669019. The next prime is 3945669031. The reversal of 3945669024 is 4209665493.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×3945669024² = 31136608093906225152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 1867159 + ... + 1869270.

It is an arithmetic number, because the mean of its divisors is an integer number (235395090).

Almost surely, 2^3945669024 is an apocalyptic number.

It is an amenable number.

3945669024 is an abundant number, since it is smaller than the sum of its proper divisors (7353295296).

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

3945669024 is a wasteful number, since it uses less digits than its factorization.

3945669024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736453 (or 3736445 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 48.

The square root of 3945669024 is about 62814.5606050062. The cubic root of 3945669024 is about 1580.1811766816.

The spelling of 3945669024 in words is "three billion, nine hundred forty-five million, six hundred sixty-nine thousand, twenty-four".