2990138 has 8 divisors (see below), whose sum is σ = 4680288. Its totient is φ = 1430044.

The previous prime is 2990137. The next prime is 2990189. The reversal of 2990138 is 8310992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2990131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32456 + ... + 32547.

It is an arithmetic number, because the mean of its divisors is an integer number (585036).

2^2990138 is an apocalyptic number.

2990138 is a deficient number, since it is larger than the sum of its proper divisors (1690150).

2990138 is a wasteful number, since it uses less digits than its factorization.

2990138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65028.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 2990138 is about 1729.2015498489. The cubic root of 2990138 is about 144.0667450358.

The spelling of 2990138 in words is "two million, nine hundred ninety thousand, one hundred thirty-eight".