2631604 has 12 divisors (see below), whose sum is σ = 4622464. Its totient is φ = 1310904.

The previous prime is 2631581. The next prime is 2631631. The reversal of 2631604 is 4061362.

2631604 is nontrivially palindromic in base 3.

2631604 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2631604² = 13850679225632, which contains 22 as substring.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157 + ... + 2299.

2^2631604 is an apocalyptic number.

It is an amenable number.

2631604 is a deficient number, since it is larger than the sum of its proper divisors (1990860).

2631604 is a wasteful number, since it uses less digits than its factorization.

2631604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2454 (or 2452 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2631604 is about 1622.2219330289. The cubic root of 2631604 is about 138.0617940717.

Adding to 2631604 its reverse (4061362), we get a palindrome (6692966).

The spelling of 2631604 in words is "two million, six hundred thirty-one thousand, six hundred four".