123532940 has 12 divisors (see below), whose sum is σ = 259419216. Its totient is φ = 49413168.

The previous prime is 123532919. The next prime is 123532943. The reversal of 123532940 is 49235321.

It is not an unprimeable number, because it can be changed into a prime (123532943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3088304 + ... + 3088343.

It is an arithmetic number, because the mean of its divisors is an integer number (21618268).

Almost surely, 2^123532940 is an apocalyptic number.

123532940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123532940 is an abundant number, since it is smaller than the sum of its proper divisors (135886276).

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

123532940 is a wasteful number, since it uses less digits than its factorization.

123532940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6176656 (or 6176654 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 123532940 is about 11114.5373273025. The cubic root of 123532940 is about 498.0362172119.

The spelling of 123532940 in words is "one hundred twenty-three million, five hundred thirty-two thousand, nine hundred forty".