123378684 has 48 divisors (see below), whose sum is σ = 338217600. Its totient is φ = 34511040.

The previous prime is 123378659. The next prime is 123378709. The reversal of 123378684 is 486873321.

It is an interprime number because it is at equal distance from previous prime (123378659) and next prime (123378709).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34234 + ... + 37665.

It is an arithmetic number, because the mean of its divisors is an integer number (7046200).

Almost surely, 2^123378684 is an apocalyptic number.

It is an amenable number.

123378684 is an abundant number, since it is smaller than the sum of its proper divisors (214838916).

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

123378684 is a wasteful number, since it uses less digits than its factorization.

123378684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71930 (or 71928 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 123378684 is about 11107.5957794655. The cubic root of 123378684 is about 497.8288310304.

The spelling of 123378684 in words is "one hundred twenty-three million, three hundred seventy-eight thousand, six hundred eighty-four".