22415481 has 32 divisors (see below), whose sum is σ = 36771840. Its totient is φ = 13381200.

The previous prime is 22415461. The next prime is 22415483. The reversal of 22415481 is 18451422.

It is not a de Polignac number, because 22415481 - 2⁶ = 22415417 is a prime.

It is a super-2 number, since 2×22415481² = 1004907576922722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22415483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20556 + ... + 21618.

It is an arithmetic number, because the mean of its divisors is an integer number (1149120).

Almost surely, 2^22415481 is an apocalyptic number.

It is an amenable number.

22415481 is a deficient number, since it is larger than the sum of its proper divisors (14356359).

22415481 is a wasteful number, since it uses less digits than its factorization.

22415481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154 (or 1148 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 22415481 is about 4734.4990231280. The cubic root of 22415481 is about 281.9568743468.

The spelling of 22415481 in words is "twenty-two million, four hundred fifteen thousand, four hundred eighty-one".