22699980 has 96 divisors (see below), whose sum is σ = 71393280. Its totient is φ = 5987520.

The previous prime is 22699973. The next prime is 22699987. The reversal of 22699980 is 8999622.

It is an interprime number because it is at equal distance from previous prime (22699973) and next prime (22699987).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (22699987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68415 + ... + 68745.

It is an arithmetic number, because the mean of its divisors is an integer number (743680).

Almost surely, 2^22699980 is an apocalyptic number.

22699980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22699980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35696640).

22699980 is an abundant number, since it is smaller than the sum of its proper divisors (48693300).

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

22699980 is a wasteful number, since it uses less digits than its factorization.

22699980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 22699980 is about 4764.4496009508. The cubic root of 22699980 is about 283.1447356972.

The spelling of 22699980 in words is "twenty-two million, six hundred ninety-nine thousand, nine hundred eighty".