2113624402 has 4 divisors (see below), whose sum is σ = 3170436606. Its totient is φ = 1056812200.

The previous prime is 2113624379. The next prime is 2113624417. The reversal of 2113624402 is 2044263112.

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., 1907156241 + 206468161 = 43671^2 + 14369^2 .

It is a super-2 number, since 2×2113624402² = 8934816225459715208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528406099 + ... + 528406102.

Almost surely, 2^2113624402 is an apocalyptic number.

2113624402 is a deficient number, since it is larger than the sum of its proper divisors (1056812204).

2113624402 is a wasteful number, since it uses less digits than its factorization.

2113624402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056812203.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 2113624402 is about 45974.1710311344. The cubic root of 2113624402 is about 1283.3425823737.

Adding to 2113624402 its reverse (2044263112), we get a palindrome (4157887514).

The spelling of 2113624402 in words is "two billion, one hundred thirteen million, six hundred twenty-four thousand, four hundred two".