2590402 has 4 divisors (see below), whose sum is σ = 3885606. Its totient is φ = 1295200.

The previous prime is 2590397. The next prime is 2590411. The reversal of 2590402 is 2040952.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2588881 + 1521 = 1609^2 + 39^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647599 + ... + 647602.

2^2590402 is an apocalyptic number.

2590402 is a deficient number, since it is larger than the sum of its proper divisors (1295204).

2590402 is a wasteful number, since it uses less digits than its factorization.

2590402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295203.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2590402 is about 1609.4725844201. The cubic root of 2590402 is about 137.3374740847.

It can be divided in two parts, 2590 and 402, that added together give a palindrome (2992).

The spelling of 2590402 in words is "two million, five hundred ninety thousand, four hundred two".