1238123874 has 32 divisors (see below), whose sum is σ = 2685936960. Its totient is φ = 378217152.

The previous prime is 1238123819. The next prime is 1238123881. The reversal of 1238123874 is 4783218321.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an alternating number because its digits alternate between odd and even.

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 15 ways as a sum of consecutive naturals, for example, 46257 + ... + 67940.

It is an arithmetic number, because the mean of its divisors is an integer number (83935530).

Almost surely, 2^1238123874 is an apocalyptic number.

1238123874 is an abundant number, since it is smaller than the sum of its proper divisors (1447813086).

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

1238123874 is a wasteful number, since it uses less digits than its factorization.

1238123874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114354.

The product of its digits is 64512, while the sum is 39.

The square root of 1238123874 is about 35186.9844402728. The cubic root of 1238123874 is about 1073.7949717685.

The spelling of 1238123874 in words is "one billion, two hundred thirty-eight million, one hundred twenty-three thousand, eight hundred seventy-four".