22074681 has 16 divisors (see below), whose sum is σ = 30665088. Its totient is φ = 14112000.

The previous prime is 22074643. The next prime is 22074719. The reversal of 22074681 is 18647022.

It is an interprime number because it is at equal distance from previous prime (22074643) and next prime (22074719).

It is not a de Polignac number, because 22074681 - 2⁶ = 22074617 is a prime.

It is a super-2 number, since 2×22074681² = 974583082503522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22078681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6481 + ... + 9281.

It is an arithmetic number, because the mean of its divisors is an integer number (1916568).

Almost surely, 2^22074681 is an apocalyptic number.

It is an amenable number.

22074681 is a deficient number, since it is larger than the sum of its proper divisors (8590407).

22074681 is a wasteful number, since it uses less digits than its factorization.

22074681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 22074681 is about 4698.3700365127. The cubic root of 22074681 is about 280.5206342197.

The spelling of 22074681 in words is "twenty-two million, seventy-four thousand, six hundred eighty-one".