253042230 has 64 divisors (see below), whose sum is σ = 698803200. Its totient is φ = 57442944.

The previous prime is 253042217. The next prime is 253042249. The reversal of 253042230 is 32240352.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 253042197 and 253042206.

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, 27247 + ... + 35333.

It is an arithmetic number, because the mean of its divisors is an integer number (10918800).

Almost surely, 2^253042230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253042230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349401600).

253042230 is an abundant number, since it is smaller than the sum of its proper divisors (445760970).

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

253042230 is a wasteful number, since it uses less digits than its factorization.

253042230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8253.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 253042230 is about 15907.3011538727. The cubic root of 253042230 is about 632.5055424012.

Adding to 253042230 its reverse (32240352), we get a palindrome (285282582).

The spelling of 253042230 in words is "two hundred fifty-three million, forty-two thousand, two hundred thirty".