123373620 has 72 divisors (see below), whose sum is σ = 377002080. Its totient is φ = 32656320.

The previous prime is 123373609. The next prime is 123373673. The reversal of 123373620 is 26373321.

123373620 is a `hidden beast` number, since 1 + 2 + 3 + 37 + 3 + 620 = 666.

It is a super-2 number, since 2×123373620² = 30442100223808800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22555 + ... + 27485.

It is an arithmetic number, because the mean of its divisors is an integer number (5236140).

Almost surely, 2^123373620 is an apocalyptic number.

123373620 is a gapful number since it is divisible by the number (10) 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 123373620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188501040).

123373620 is an abundant number, since it is smaller than the sum of its proper divisors (253628460).

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

123373620 is a wasteful number, since it uses less digits than its factorization.

123373620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5085 (or 5080 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 123373620 is about 11107.3678250070. The cubic root of 123373620 is about 497.8220199141.

The spelling of 123373620 in words is "one hundred twenty-three million, three hundred seventy-three thousand, six hundred twenty".