2972138 has 16 divisors (see below), whose sum is σ = 4865280. Its totient is φ = 1353456.

The previous prime is 2972119. The next prime is 2972141. The reversal of 2972138 is 8312792.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1331 + ... + 2777.

It is an arithmetic number, because the mean of its divisors is an integer number (304080).

2^2972138 is an apocalyptic number.

2972138 is a deficient number, since it is larger than the sum of its proper divisors (1893142).

2972138 is a wasteful number, since it uses less digits than its factorization.

2972138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541.

The product of its digits is 6048, while the sum is 32.

The square root of 2972138 is about 1723.9889790831. The cubic root of 2972138 is about 143.7770792086. Note that the first 3 decimals are identical.

The spelling of 2972138 in words is "two million, nine hundred seventy-two thousand, one hundred thirty-eight".