2638072 has 32 divisors (see below), whose sum is σ = 5216400. Its totient is φ = 1249024.

The previous prime is 2638061. The next prime is 2638073. The reversal of 2638072 is 2708362.

It is a self number, because there is not a number n which added to its sum of digits gives 2638072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638073) 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, 19188 + ... + 19324.

2^2638072 is an apocalyptic number.

It is an amenable number.

2638072 is a deficient number, since it is larger than the sum of its proper divisors (2578328).

2638072 is a wasteful number, since it uses less digits than its factorization.

2638072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2638072 is about 1624.2142715787. The cubic root of 2638072 is about 138.1748117198.

The spelling of 2638072 in words is "two million, six hundred thirty-eight thousand, seventy-two".