253992238 has 16 divisors (see below), whose sum is σ = 393776640. Its totient is φ = 122743800.

The previous prime is 253992203. The next prime is 253992239. The reversal of 253992238 is 832299352.

It is a junction number, because it is equal to n+sod(n) for n = 253992194 and 253992203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253992239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58093 + ... + 62311.

It is an arithmetic number, because the mean of its divisors is an integer number (24611040).

Almost surely, 2^253992238 is an apocalyptic number.

253992238 is a deficient number, since it is larger than the sum of its proper divisors (139784402).

253992238 is a wasteful number, since it uses less digits than its factorization.

253992238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5223.

The product of its digits is 233280, while the sum is 43.

The square root of 253992238 is about 15937.1339330508. The cubic root of 253992238 is about 633.2961020280.

The spelling of 253992238 in words is "two hundred fifty-three million, nine hundred ninety-two thousand, two hundred thirty-eight".