1238744994 has 16 divisors (see below), whose sum is σ = 2585207232. Its totient is φ = 394962128.

The previous prime is 1238744993. The next prime is 1238745007. The reversal of 1238744994 is 4994478321.

It is not an unprimeable number, because it can be changed into a prime (1238744993) 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, 4488069 + ... + 4488344.

It is an arithmetic number, because the mean of its divisors is an integer number (161575452).

Almost surely, 2^1238744994 is an apocalyptic number.

1238744994 is an abundant number, since it is smaller than the sum of its proper divisors (1346462238).

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

1238744994 is a wasteful number, since it uses less digits than its factorization.

1238744994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8976441.

The product of its digits is 1741824, while the sum is 51.

The square root of 1238744994 is about 35195.8093244068. The cubic root of 1238744994 is about 1073.9745025486.

The spelling of 1238744994 in words is "one billion, two hundred thirty-eight million, seven hundred forty-four thousand, nine hundred ninety-four".