3961914432 has 56 divisors (see below), whose sum is σ = 11980078656. Its totient is φ = 1131975168.

The previous prime is 3961914391. The next prime is 3961914433. The reversal of 3961914432 is 2344191693.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (3961914433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1472583 + ... + 1475270.

It is an arithmetic number, because the mean of its divisors is an integer number (213929976).

Almost surely, 2^3961914432 is an apocalyptic number.

3961914432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3961914432 is an abundant number, since it is smaller than the sum of its proper divisors (8018164224).

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

3961914432 is a wasteful number, since it uses less digits than its factorization.

3961914432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947875 (or 2947865 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 3961914432 is about 62943.7402129870. The cubic root of 3961914432 is about 1582.3468877467.

The spelling of 3961914432 in words is "three billion, nine hundred sixty-one million, nine hundred fourteen thousand, four hundred thirty-two".