253682438 has 4 divisors (see below), whose sum is σ = 380523660. Its totient is φ = 126841218.

The previous prime is 253682399. The next prime is 253682441. The reversal of 253682438 is 834286352.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 253682395 and 253682404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63420608 + ... + 63420611.

It is an arithmetic number, because the mean of its divisors is an integer number (95130915).

Almost surely, 2^253682438 is an apocalyptic number.

253682438 is a deficient number, since it is larger than the sum of its proper divisors (126841222).

253682438 is a wasteful number, since it uses less digits than its factorization.

253682438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126841221.

The product of its digits is 276480, while the sum is 41.

The square root of 253682438 is about 15927.4115285567. The cubic root of 253682438 is about 633.0385154762.

The spelling of 253682438 in words is "two hundred fifty-three million, six hundred eighty-two thousand, four hundred thirty-eight".