253688246 has 24 divisors (see below), whose sum is σ = 461988336. Its totient is φ = 102326400.

The previous prime is 253688219. The next prime is 253688269. The reversal of 253688246 is 642886352.

It is a junction number, because it is equal to n+sod(n) for n = 253688197 and 253688206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27305 + ... + 35396.

It is an arithmetic number, because the mean of its divisors is an integer number (19249514).

Almost surely, 2^253688246 is an apocalyptic number.

253688246 is a deficient number, since it is larger than the sum of its proper divisors (208300090).

253688246 is a wasteful number, since it uses less digits than its factorization.

253688246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62744 (or 62727 counting only the distinct ones).

The product of its digits is 552960, while the sum is 44.

The square root of 253688246 is about 15927.5938546913. The cubic root of 253688246 is about 633.0433465288.

The spelling of 253688246 in words is "two hundred fifty-three million, six hundred eighty-eight thousand, two hundred forty-six".