220792530 has 128 divisors (see below), whose sum is σ = 633600000. Its totient is φ = 49194432.

The previous prime is 220792519. The next prime is 220792543. The reversal of 220792530 is 35297022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 442221 + ... + 442719.

It is an arithmetic number, because the mean of its divisors is an integer number (4950000).

Almost surely, 2^220792530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220792530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316800000).

220792530 is an abundant number, since it is smaller than the sum of its proper divisors (412807470).

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

220792530 is a wasteful number, since it uses less digits than its factorization.

220792530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 220792530 is about 14859.0891376289. The cubic root of 220792530 is about 604.4051070157.

The spelling of 220792530 in words is "two hundred twenty million, seven hundred ninety-two thousand, five hundred thirty".