2140624 has 20 divisors (see below), whose sum is σ = 4170244. Its totient is φ = 1064448.

The previous prime is 2140609. The next prime is 2140627. The reversal of 2140624 is 4260412.

It can be written as a sum of positive squares in 2 ways, for example, as 1000000 + 1140624 = 1000^2 + 1068^2 .

It is a super-2 number, since 2×2140624² = 9164542218752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140627) 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, 5194 + ... + 5590.

2^2140624 is an apocalyptic number.

It is an amenable number.

2140624 is a deficient number, since it is larger than the sum of its proper divisors (2029620).

2140624 is a wasteful number, since it uses less digits than its factorization.

2140624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2140624 is about 1463.0871470969. The cubic root of 2140624 is about 128.8783983182.

The spelling of 2140624 in words is "two million, one hundred forty thousand, six hundred twenty-four".