22455739 has 4 divisors (see below), whose sum is σ = 23637640. Its totient is φ = 21273840.

The previous prime is 22455737. The next prime is 22455799. The reversal of 22455739 is 93755422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22455739 - 2¹ = 22455737 is a prime.

It is a super-2 number, since 2×22455739² = 1008520428072242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22455698 and 22455707.

It is not an unprimeable number, because it can be changed into a prime (22455731) 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, 590922 + ... + 590959.

It is an arithmetic number, because the mean of its divisors is an integer number (5909410).

Almost surely, 2^22455739 is an apocalyptic number.

22455739 is a deficient number, since it is larger than the sum of its proper divisors (1181901).

22455739 is a wasteful number, since it uses less digits than its factorization.

22455739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181900.

The product of its digits is 75600, while the sum is 37.

The square root of 22455739 is about 4738.7486744920. The cubic root of 22455739 is about 282.1255707220.

The spelling of 22455739 in words is "twenty-two million, four hundred fifty-five thousand, seven hundred thirty-nine".