123874390 has 16 divisors (see below), whose sum is σ = 223436880. Its totient is φ = 49446880.

The previous prime is 123874369. The next prime is 123874391. The reversal of 123874390 is 93478321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123874391) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7705 + ... + 17524.

It is an arithmetic number, because the mean of its divisors is an integer number (13964805).

Almost surely, 2^123874390 is an apocalyptic number.

123874390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123874390 is a deficient number, since it is larger than the sum of its proper divisors (99562490).

123874390 is a wasteful number, since it uses less digits than its factorization.

123874390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25727.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 123874390 is about 11129.8872411179. The cubic root of 123874390 is about 498.4946591125.

The spelling of 123874390 in words is "one hundred twenty-three million, eight hundred seventy-four thousand, three hundred ninety".