22260381 has 32 divisors (see below), whose sum is σ = 36718080. Its totient is φ = 11793600.

The previous prime is 22260377. The next prime is 22260431. The reversal of 22260381 is 18306222.

It is not a de Polignac number, because 22260381 - 2² = 22260377 is a prime.

It is a super-2 number, since 2×22260381² = 991049124530322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22260341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6786 + ... + 9516.

It is an arithmetic number, because the mean of its divisors is an integer number (1147440).

Almost surely, 2^22260381 is an apocalyptic number.

It is an amenable number.

22260381 is a deficient number, since it is larger than the sum of its proper divisors (14457699).

22260381 is a wasteful number, since it uses less digits than its factorization.

22260381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 22260381 is about 4718.0908215082. The cubic root of 22260381 is about 281.3050515446.

The spelling of 22260381 in words is "twenty-two million, two hundred sixty thousand, three hundred eighty-one".