3949652880 has 80 divisors (see below), whose sum is σ = 13604367360. Its totient is φ = 1053240192.

The previous prime is 3949652879. The next prime is 3949652921. The reversal of 3949652880 is 882569493.

3949652880 is a `hidden beast` number, since 39 + 4 + 9 + 6 + 528 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 912112 + ... + 916431.

It is an arithmetic number, because the mean of its divisors is an integer number (170054592).

Almost surely, 2^3949652880 is an apocalyptic number.

3949652880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3949652880 is an abundant number, since it is smaller than the sum of its proper divisors (9654714480).

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

3949652880 is a wasteful number, since it uses less digits than its factorization.

3949652880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828565 (or 1828553 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The square root of 3949652880 is about 62846.2638507652. The cubic root of 3949652880 is about 1580.7128226202.

The spelling of 3949652880 in words is "three billion, nine hundred forty-nine million, six hundred fifty-two thousand, eight hundred eighty".