2139370 has 16 divisors (see below), whose sum is σ = 3868200. Its totient is φ = 851904.

The previous prime is 2139367. The next prime is 2139373. The reversal of 2139370 is 739312.

It is an interprime number because it is at equal distance from previous prime (2139367) and next prime (2139373).

It can be written as a sum of positive squares in 4 ways, for example, as 1238769 + 900601 = 1113^2 + 949^2 .

It is not an unprimeable number, because it can be changed into a prime (2139373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3184 + ... + 3796.

2^2139370 is an apocalyptic number.

2139370 is a deficient number, since it is larger than the sum of its proper divisors (1728830).

2139370 is a wasteful number, since it uses less digits than its factorization.

2139370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 2139370 is about 1462.6585384156. The cubic root of 2139370 is about 128.8532272964.

The spelling of 2139370 in words is "two million, one hundred thirty-nine thousand, three hundred seventy".