22453780 has 24 divisors (see below), whose sum is σ = 48158208. Its totient is φ = 8790048.

The previous prime is 22453759. The next prime is 22453789. The reversal of 22453780 is 8735422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22453789) 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, 11004 + ... + 12883.

It is an arithmetic number, because the mean of its divisors is an integer number (2006592).

Almost surely, 2^22453780 is an apocalyptic number.

22453780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22453780 is an abundant number, since it is smaller than the sum of its proper divisors (25704428).

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

22453780 is a wasteful number, since it uses less digits than its factorization.

22453780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23943 (or 23941 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 22453780 is about 4738.5419698468. The cubic root of 22453780 is about 282.1173664338.

The spelling of 22453780 in words is "twenty-two million, four hundred fifty-three thousand, seven hundred eighty".