123480400 has 30 divisors (see below), whose sum is σ = 296662622. Its totient is φ = 49392000.

The previous prime is 123480361. The next prime is 123480419. The reversal of 123480400 is 4084321.

It can be written as a sum of positive squares in 3 ways, for example, as 38987536 + 84492864 = 6244^2 + 9192^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 153951 + ... + 154750.

Almost surely, 2^123480400 is an apocalyptic number.

123480400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123480400 is an abundant number, since it is smaller than the sum of its proper divisors (173182222).

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

123480400 is a wasteful number, since it uses less digits than its factorization.

123480400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308719 (or 308708 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 123480400 is about 11112.1735047649. The cubic root of 123480400 is about 497.9656003292.

The spelling of 123480400 in words is "one hundred twenty-three million, four hundred eighty thousand, four hundred".