253472220 has 96 divisors (see below), whose sum is σ = 791347200. Its totient is φ = 67355712.

The previous prime is 253472207. The next prime is 253472239. The reversal of 253472220 is 22274352.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197541 + ... + 198819.

It is an arithmetic number, because the mean of its divisors is an integer number (8243200).

Almost surely, 2^253472220 is an apocalyptic number.

253472220 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 253472220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395673600).

253472220 is an abundant number, since it is smaller than the sum of its proper divisors (537874980).

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

253472220 is a wasteful number, since it uses less digits than its factorization.

253472220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664 (or 1656 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 253472220 is about 15920.8109089958. The cubic root of 253472220 is about 632.8636079984.

The spelling of 253472220 in words is "two hundred fifty-three million, four hundred seventy-two thousand, two hundred twenty".