123404730 has 32 divisors (see below), whose sum is σ = 299505600. Its totient is φ = 32537472.

The previous prime is 123404719. The next prime is 123404747. The reversal of 123404730 is 37404321.

It is a self number, because there is not a number n which added to its sum of digits gives 123404730.

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, 20440 + ... + 25779.

It is an arithmetic number, because the mean of its divisors is an integer number (9359550).

Almost surely, 2^123404730 is an apocalyptic number.

123404730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123404730 is an abundant number, since it is smaller than the sum of its proper divisors (176100870).

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

123404730 is a wasteful number, since it uses less digits than its factorization.

123404730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46318.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 123404730 is about 11108.7681585313. The cubic root of 123404730 is about 497.8638601429.

The spelling of 123404730 in words is "one hundred twenty-three million, four hundred four thousand, seven hundred thirty".