253422320 has 40 divisors (see below), whose sum is σ = 589875936. Its totient is φ = 101253888.

The previous prime is 253422313. The next prime is 253422371. The reversal of 253422320 is 23224352.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122414 + ... + 124466.

Almost surely, 2^253422320 is an apocalyptic number.

253422320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253422320 is an abundant number, since it is smaller than the sum of its proper divisors (336453616).

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

253422320 is a wasteful number, since it uses less digits than its factorization.

253422320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3609 (or 3603 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 253422320 is about 15919.2437006285. The cubic root of 253422320 is about 632.8220755489.

Adding to 253422320 its reverse (23224352), we get a palindrome (276646672).

The spelling of 253422320 in words is "two hundred fifty-three million, four hundred twenty-two thousand, three hundred twenty".