22613780 has 24 divisors (see below), whose sum is σ = 54273408. Its totient is φ = 7753248.

The previous prime is 22613779. The next prime is 22613797. The reversal of 22613780 is 8731622.

It is a happy number.

It is a super-2 number, since 2×22613780² = 1022766091776800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80624 + ... + 80903.

It is an arithmetic number, because the mean of its divisors is an integer number (2261392).

Almost surely, 2^22613780 is an apocalyptic number.

22613780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22613780 is an abundant number, since it is smaller than the sum of its proper divisors (31659628).

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

22613780 is a wasteful number, since it uses less digits than its factorization.

22613780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161543 (or 161541 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 22613780 is about 4755.3948311365. The cubic root of 22613780 is about 282.7858802311.

The spelling of 22613780 in words is "twenty-two million, six hundred thirteen thousand, seven hundred eighty".