2978490 has 32 divisors (see below), whose sum is σ = 7226496. Its totient is φ = 785600.

The previous prime is 2978489. The next prime is 2978491. The reversal of 2978490 is 948792.

It is an interprime number because it is at equal distance from previous prime (2978489) and next prime (2978491).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2539 + ... + 3521.

It is an arithmetic number, because the mean of its divisors is an integer number (225828).

2^2978490 is an apocalyptic number.

2978490 is an abundant number, since it is smaller than the sum of its proper divisors (4248006).

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

2978490 is a wasteful number, since it uses less digits than its factorization.

2978490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 2978490 is about 1725.8302349884. The cubic root of 2978490 is about 143.8794322587.

The spelling of 2978490 in words is "two million, nine hundred seventy-eight thousand, four hundred ninety".