123279408 has 200 divisors, whose sum is σ = 414830592. Its totient is φ = 34618752.

The previous prime is 123279389. The next prime is 123279413. The reversal of 123279408 is 804972321.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 970641 + ... + 970767.

Almost surely, 2^123279408 is an apocalyptic number.

123279408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123279408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207415296).

123279408 is an abundant number, since it is smaller than the sum of its proper divisors (291551184).

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

123279408 is a wasteful number, since it uses less digits than its factorization.

123279408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 123279408 is about 11103.1260462989. The cubic root of 123279408 is about 497.6952700964.

The spelling of 123279408 in words is "one hundred twenty-three million, two hundred seventy-nine thousand, four hundred eight".