2978402 has 16 divisors (see below), whose sum is σ = 5375040. Its totient is φ = 1209168.

The previous prime is 2978401. The next prime is 2978407. The reversal of 2978402 is 2048792.

2978402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2978401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5333 + ... + 5864.

It is an arithmetic number, because the mean of its divisors is an integer number (335940).

2^2978402 is an apocalyptic number.

2978402 is a deficient number, since it is larger than the sum of its proper divisors (2396638).

2978402 is a wasteful number, since it uses less digits than its factorization.

2978402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11225.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2978402 is about 1725.8047398243. The cubic root of 2978402 is about 143.8780152639.

The spelling of 2978402 in words is "two million, nine hundred seventy-eight thousand, four hundred two".