123488740 has 24 divisors (see below), whose sum is σ = 264845952. Its totient is φ = 48344160.

The previous prime is 123488723. The next prime is 123488741. The reversal of 123488740 is 47884321.

It is a self number, because there is not a number n which added to its sum of digits gives 123488740.

It is not an unprimeable number, because it can be changed into a prime (123488741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64746 + ... + 66625.

It is an arithmetic number, because the mean of its divisors is an integer number (11035248).

Almost surely, 2^123488740 is an apocalyptic number.

123488740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123488740 is an abundant number, since it is smaller than the sum of its proper divisors (141357212).

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

123488740 is a wasteful number, since it uses less digits than its factorization.

123488740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131427 (or 131425 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 123488740 is about 11112.5487625477. The cubic root of 123488740 is about 497.9768111222.

The spelling of 123488740 in words is "one hundred twenty-three million, four hundred eighty-eight thousand, seven hundred forty".