2978881432 has 64 divisors (see below), whose sum is σ = 5974041600. Its totient is φ = 1389273600.

The previous prime is 2978881403. The next prime is 2978881441. The reversal of 2978881432 is 2341888792.

It is a happy number.

2978881432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2978881432.

It is a congruent number.

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, 3467419 + ... + 3468277.

It is an arithmetic number, because the mean of its divisors is an integer number (93344400).

Almost surely, 2^2978881432 is an apocalyptic number.

It is an amenable number.

2978881432 is an abundant number, since it is smaller than the sum of its proper divisors (2995160168).

2978881432 is a wasteful number, since it uses less digits than its factorization.

2978881432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336 (or 1332 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 52.

The square root of 2978881432 is about 54579.1300040592. The cubic root of 2978881432 is about 1438.8573484234.

The spelling of 2978881432 in words is "two billion, nine hundred seventy-eight million, eight hundred eighty-one thousand, four hundred thirty-two".