123476540 has 48 divisors (see below), whose sum is σ = 285725664. Its totient is φ = 44448000.

The previous prime is 123476537. The next prime is 123476599. The reversal of 123476540 is 45674321.

It is a junction number, because it is equal to n+sod(n) for n = 123476497 and 123476506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19442 + ... + 24998.

It is an arithmetic number, because the mean of its divisors is an integer number (5952618).

Almost surely, 2^123476540 is an apocalyptic number.

123476540 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 123476540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142862832).

123476540 is an abundant number, since it is smaller than the sum of its proper divisors (162249124).

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

123476540 is a wasteful number, since it uses less digits than its factorization.

123476540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5678 (or 5676 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 123476540 is about 11111.9998200144. Note that the first 3 decimals coincide. The cubic root of 123476540 is about 497.9604114700.

The spelling of 123476540 in words is "one hundred twenty-three million, four hundred seventy-six thousand, five hundred forty".