123353740 has 12 divisors (see below), whose sum is σ = 259042896. Its totient is φ = 49341488.

The previous prime is 123353693. The next prime is 123353749. The reversal of 123353740 is 47353321.

It is a super-2 number, since 2×123353740² = 30432290343975200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123353699 and 123353708.

It is not an unprimeable number, because it can be changed into a prime (123353749) 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, 3083824 + ... + 3083863.

It is an arithmetic number, because the mean of its divisors is an integer number (21586908).

Almost surely, 2^123353740 is an apocalyptic number.

123353740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123353740 is an abundant number, since it is smaller than the sum of its proper divisors (135689156).

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

123353740 is a wasteful number, since it uses less digits than its factorization.

123353740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6167696 (or 6167694 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 123353740 is about 11106.4728874652. The cubic root of 123353740 is about 497.7952793695.

The spelling of 123353740 in words is "one hundred twenty-three million, three hundred fifty-three thousand, seven hundred forty".