22280476 has 12 divisors (see below), whose sum is σ = 39525472. Its totient is φ = 10987488.

The previous prime is 22280473. The next prime is 22280477. The reversal of 22280476 is 67408222.

It is a super-2 number, since 2×22280476² = 992839221573152, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22280471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37860 + ... + 38443.

Almost surely, 2^22280476 is an apocalyptic number.

It is an amenable number.

22280476 is a deficient number, since it is larger than the sum of its proper divisors (17244996).

22280476 is a wasteful number, since it uses less digits than its factorization.

22280476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76380 (or 76378 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 22280476 is about 4720.2199101313. The cubic root of 22280476 is about 281.3896731103.

Adding to 22280476 its reverse (67408222), we get a palindrome (89688698).

The spelling of 22280476 in words is "twenty-two million, two hundred eighty thousand, four hundred seventy-six".