1238253808 has 20 divisors (see below), whose sum is σ = 2617218648. Its totient is φ = 562842560.

The previous prime is 1238253767. The next prime is 1238253851. The reversal of 1238253808 is 8083528321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3517591 + ... + 3517942.

Almost surely, 2^1238253808 is an apocalyptic number.

It is an amenable number.

1238253808 is an abundant number, since it is smaller than the sum of its proper divisors (1378964840).

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

1238253808 is a wasteful number, since it uses less digits than its factorization.

1238253808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7035552 (or 7035546 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 1238253808 is about 35188.8307279455. The cubic root of 1238253808 is about 1073.8325333292.

The spelling of 1238253808 in words is "one billion, two hundred thirty-eight million, two hundred fifty-three thousand, eight hundred eight".