123654320 has 40 divisors (see below), whose sum is σ = 292220880. Its totient is φ = 48648960.

The previous prime is 123654301. The next prime is 123654341. The reversal of 123654320 is 23456321.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 123654320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7790 + ... + 17549.

It is an arithmetic number, because the mean of its divisors is an integer number (7305522).

Almost surely, 2^123654320 is an apocalyptic number.

123654320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123654320 is an abundant number, since it is smaller than the sum of its proper divisors (168566560).

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

123654320 is a wasteful number, since it uses less digits than its factorization.

123654320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25413 (or 25407 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 123654320 is about 11119.9964028771. The cubic root of 123654320 is about 498.1992826191.

The spelling of 123654320 in words is "one hundred twenty-three million, six hundred fifty-four thousand, three hundred twenty".