1238268984 has 32 divisors (see below), whose sum is σ = 3277771920. Its totient is φ = 388476416.

The previous prime is 1238268953. The next prime is 1238269061. The reversal of 1238268984 is 4898628321.

It is a super-4 number, since 4×1238268984⁴ (a number of 37 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1517079 + ... + 1517894.

Almost surely, 2^1238268984 is an apocalyptic number.

It is an amenable number.

1238268984 is an abundant number, since it is smaller than the sum of its proper divisors (2039502936).

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

1238268984 is a wasteful number, since it uses less digits than its factorization.

1238268984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3034999 (or 3034995 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 51.

The square root of 1238268984 is about 35189.0463638900. The cubic root of 1238268984 is about 1073.8369202640.

The spelling of 1238268984 in words is "one billion, two hundred thirty-eight million, two hundred sixty-eight thousand, nine hundred eighty-four".