22496381 has 4 divisors (see below), whose sum is σ = 22595712. Its totient is φ = 22397052.

The previous prime is 22496363. The next prime is 22496447. The reversal of 22496381 is 18369422.

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 22496381 - 2¹⁴ = 22479997 is a prime.

It is a super-2 number, since 2×22496381² = 1012174316194322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22496311) 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, 49325 + ... + 49778.

It is an arithmetic number, because the mean of its divisors is an integer number (5648928).

Almost surely, 2^22496381 is an apocalyptic number.

It is an amenable number.

22496381 is a deficient number, since it is larger than the sum of its proper divisors (99331).

22496381 is an equidigital number, since it uses as much as digits as its factorization.

22496381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99330.

The product of its digits is 20736, while the sum is 35.

The square root of 22496381 is about 4743.0349988167. The cubic root of 22496381 is about 282.2956718110.

The spelling of 22496381 in words is "twenty-two million, four hundred ninety-six thousand, three hundred eighty-one".