22220739 has 6 divisors (see below), whose sum is σ = 32096636. Its totient is φ = 14813820.

The previous prime is 22220713. The next prime is 22220741. The reversal of 22220739 is 93702222.

It is not a de Polignac number, because 22220739 - 2⁹ = 22220227 is a prime.

It is a super-2 number, since 2×22220739² = 987522483412242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22220339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1234477 + ... + 1234494.

Almost surely, 2^22220739 is an apocalyptic number.

22220739 is a deficient number, since it is larger than the sum of its proper divisors (9875897).

22220739 is a wasteful number, since it uses less digits than its factorization.

22220739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468977 (or 2468974 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 22220739 is about 4713.8878858115. The cubic root of 22220739 is about 281.1379666377.

The spelling of 22220739 in words is "twenty-two million, two hundred twenty thousand, seven hundred thirty-nine".