2634404 has 6 divisors (see below), whose sum is σ = 4610214. Its totient is φ = 1317200.

The previous prime is 2634403. The next prime is 2634419. The reversal of 2634404 is 4044362.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1638400 + 996004 = 1280^2 + 998^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2634404.

It is not an unprimeable number, because it can be changed into a prime (2634403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329297 + ... + 329304.

It is an arithmetic number, because the mean of its divisors is an integer number (768369).

2^2634404 is an apocalyptic number.

It is an amenable number.

2634404 is a deficient number, since it is larger than the sum of its proper divisors (1975810).

2634404 is a wasteful number, since it uses less digits than its factorization.

2634404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658605 (or 658603 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2634404 is about 1623.0847174439. The cubic root of 2634404 is about 138.1107421658.

Adding to 2634404 its reverse (4044362), we get a palindrome (6678766).

The spelling of 2634404 in words is "two million, six hundred thirty-four thousand, four hundred four".