123415830 has 48 divisors (see below), whose sum is σ = 337774320. Its totient is φ = 31178304.

The previous prime is 123415829. The next prime is 123415837. The reversal of 123415830 is 38514321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 123415794 and 123415803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123415837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34377 + ... + 37796.

It is an arithmetic number, because the mean of its divisors is an integer number (7036965).

Almost surely, 2^123415830 is an apocalyptic number.

123415830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123415830 is an abundant number, since it is smaller than the sum of its proper divisors (214358490).

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

123415830 is a wasteful number, since it uses less digits than its factorization.

123415830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72205 (or 72202 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 123415830 is about 11109.2677526469. The cubic root of 123415830 is about 497.8787869699.

The spelling of 123415830 in words is "one hundred twenty-three million, four hundred fifteen thousand, eight hundred thirty".