2978824 has 8 divisors (see below), whose sum is σ = 5585310. Its totient is φ = 1489408.

The previous prime is 2978819. The next prime is 2978869. The reversal of 2978824 is 4288792.

2978824 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2502724 + 476100 = 1582^2 + 690^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186169 + ... + 186184.

2^2978824 is an apocalyptic number.

It is an amenable number.

2978824 is a deficient number, since it is larger than the sum of its proper divisors (2606486).

2978824 is a wasteful number, since it uses less digits than its factorization.

2978824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372359 (or 372355 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 2978824 is about 1725.9269972974. The cubic root of 2978824 is about 143.8848101442.

The spelling of 2978824 in words is "two million, nine hundred seventy-eight thousand, eight hundred twenty-four".