22958460 has 216 divisors, whose sum is σ = 85896720. Its totient is φ = 4935168.

The previous prime is 22958447. The next prime is 22958461. The reversal of 22958460 is 6485922.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22958461) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 167512 + ... + 167648.

It is an arithmetic number, because the mean of its divisors is an integer number (397670).

Almost surely, 2^22958460 is an apocalyptic number.

22958460 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 22958460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42948360).

22958460 is an abundant number, since it is smaller than the sum of its proper divisors (62938260).

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

22958460 is a wasteful number, since it uses less digits than its factorization.

22958460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 22958460 is about 4791.4987216945. The cubic root of 22958460 is about 284.2153857735.

The spelling of 22958460 in words is "twenty-two million, nine hundred fifty-eight thousand, four hundred sixty".