22160780 has 24 divisors (see below), whose sum is σ = 47797008. Its totient is φ = 8624448.

The previous prime is 22160777. The next prime is 22160791. The reversal of 22160780 is 8706122.

It is a super-2 number, since 2×22160780² = 982200340416800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14234 + ... + 15713.

It is an arithmetic number, because the mean of its divisors is an integer number (1991542).

Almost surely, 2^22160780 is an apocalyptic number.

22160780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22160780 is an abundant number, since it is smaller than the sum of its proper divisors (25636228).

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

22160780 is a wasteful number, since it uses less digits than its factorization.

22160780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29993 (or 29991 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 22160780 is about 4707.5237652082. The cubic root of 22160780 is about 280.8848707073.

The spelling of 22160780 in words is "twenty-two million, one hundred sixty thousand, seven hundred eighty".