123945330 has 32 divisors (see below), whose sum is σ = 299449728. Its totient is φ = 32832000.

The previous prime is 123945329. The next prime is 123945343. The reversal of 123945330 is 33549321.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 9151 + ... + 18210.

It is an arithmetic number, because the mean of its divisors is an integer number (9357804).

Almost surely, 2^123945330 is an apocalyptic number.

123945330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123945330 is an abundant number, since it is smaller than the sum of its proper divisors (175504398).

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

123945330 is a wasteful number, since it uses less digits than its factorization.

123945330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27522.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 123945330 is about 11133.0736995674. The cubic root of 123945330 is about 498.5897997430.

The spelling of 123945330 in words is "one hundred twenty-three million, nine hundred forty-five thousand, three hundred thirty".