23275980 has 288 divisors, whose sum is σ = 91728000. Its totient is φ = 4741632.

The previous prime is 23275963. The next prime is 23275991. The reversal of 23275980 is 8957232.

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 an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 802606 + ... + 802634.

It is an arithmetic number, because the mean of its divisors is an integer number (318500).

Almost surely, 2^23275980 is an apocalyptic number.

23275980 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 23275980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45864000).

23275980 is an abundant number, since it is smaller than the sum of its proper divisors (68452020).

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

23275980 is a wasteful number, since it uses less digits than its factorization.

23275980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 23275980 is about 4824.5186288375. The cubic root of 23275980 is about 285.5196429059.

The spelling of 23275980 in words is "twenty-three million, two hundred seventy-five thousand, nine hundred eighty".