22074731 has 4 divisors (see below), whose sum is σ = 25228272. Its totient is φ = 18921192.

The previous prime is 22074719. The next prime is 22074737. The reversal of 22074731 is 13747022.

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 22074731 - 2¹⁴ = 22058347 is a prime.

It is a super-2 number, since 2×22074731² = 974587497444722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22074731.

It is not an unprimeable number, because it can be changed into a prime (22074737) 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 3 ways as a sum of consecutive naturals, for example, 1576760 + ... + 1576773.

It is an arithmetic number, because the mean of its divisors is an integer number (6307068).

Almost surely, 2^22074731 is an apocalyptic number.

22074731 is a deficient number, since it is larger than the sum of its proper divisors (3153541).

22074731 is an equidigital number, since it uses as much as digits as its factorization.

22074731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153540.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 22074731 is about 4698.3753575039. The cubic root of 22074731 is about 280.5208460163.

The spelling of 22074731 in words is "twenty-two million, seventy-four thousand, seven hundred thirty-one".