123788370 has 32 divisors (see below), whose sum is σ = 298063872. Its totient is φ = 32902272.

The previous prime is 123788359. The next prime is 123788383. The reversal of 123788370 is 73887321.

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, 2799 + ... + 15981.

It is an arithmetic number, because the mean of its divisors is an integer number (9314496).

Almost surely, 2^123788370 is an apocalyptic number.

123788370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123788370 is an abundant number, since it is smaller than the sum of its proper divisors (174275502).

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

123788370 is a wasteful number, since it uses less digits than its factorization.

123788370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13506.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 123788370 is about 11126.0222002295. The cubic root of 123788370 is about 498.3792453185.

The spelling of 123788370 in words is "one hundred twenty-three million, seven hundred eighty-eight thousand, three hundred seventy".