253269720 has 128 divisors (see below), whose sum is σ = 921024000. Its totient is φ = 61395840.

The previous prime is 253269661. The next prime is 253269727. The reversal of 253269720 is 27962352.

253269720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (253269727) 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, 1221 + ... + 22539.

It is an arithmetic number, because the mean of its divisors is an integer number (7195500).

Almost surely, 2^253269720 is an apocalyptic number.

253269720 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 253269720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460512000).

253269720 is an abundant number, since it is smaller than the sum of its proper divisors (667754280).

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

253269720 is a wasteful number, since it uses less digits than its factorization.

253269720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21350 (or 21340 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 253269720 is about 15914.4500376230. The cubic root of 253269720 is about 632.6950306509.

The spelling of 253269720 in words is "two hundred fifty-three million, two hundred sixty-nine thousand, seven hundred twenty".