22455480 has 32 divisors (see below), whose sum is σ = 67366800. Its totient is φ = 5988096.

The previous prime is 22455451. The next prime is 22455481. The reversal of 22455480 is 8455422.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22455481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93445 + ... + 93684.

Almost surely, 2^22455480 is an apocalyptic number.

22455480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22455480 is an abundant number, since it is smaller than the sum of its proper divisors (44911320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22455480 is a wasteful number, since it uses less digits than its factorization.

22455480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187143 (or 187139 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 22455480 is about 4738.7213465238. The cubic root of 22455480 is about 282.1244860579.

The spelling of 22455480 in words is "twenty-two million, four hundred fifty-five thousand, four hundred eighty".