22402369 has 4 divisors (see below), whose sum is σ = 24438960. Its totient is φ = 20365780.

The previous prime is 22402343. The next prime is 22402381. The reversal of 22402369 is 96320422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22402369 - 2⁵ = 22402337 is a prime.

It is a super-2 number, since 2×22402369² = 1003732273624322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22402319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018279 + ... + 1018300.

It is an arithmetic number, because the mean of its divisors is an integer number (6109740).

Almost surely, 2^22402369 is an apocalyptic number.

It is an amenable number.

22402369 is a deficient number, since it is larger than the sum of its proper divisors (2036591).

22402369 is a wasteful number, since it uses less digits than its factorization.

22402369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036590.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 22402369 is about 4733.1140911666. The cubic root of 22402369 is about 281.9018864625.

The spelling of 22402369 in words is "twenty-two million, four hundred two thousand, three hundred sixty-nine".