2140538 has 16 divisors (see below), whose sum is σ = 3429864. Its totient is φ = 998400.

The previous prime is 2140531. The next prime is 2140543. The reversal of 2140538 is 8350412.

It can be written as a sum of positive squares in 4 ways, for example, as 2140369 + 169 = 1463^2 + 13^2 .

It is not an unprimeable number, because it can be changed into a prime (2140531) 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, 5138 + ... + 5538.

2^2140538 is an apocalyptic number.

2140538 is a deficient number, since it is larger than the sum of its proper divisors (1289326).

2140538 is a wasteful number, since it uses less digits than its factorization.

2140538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2140538 is about 1463.0577568914. The cubic root of 2140538 is about 128.8766723899.

The spelling of 2140538 in words is "two million, one hundred forty thousand, five hundred thirty-eight".