124280940 has 96 divisors (see below), whose sum is σ = 399168000. Its totient is φ = 28302336.

The previous prime is 124280929. The next prime is 124280941. The reversal of 124280940 is 49082421.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 124280898 and 124280907.

It is not an unprimeable number, because it can be changed into a prime (124280941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209284 + ... + 209876.

It is an arithmetic number, because the mean of its divisors is an integer number (4158000).

Almost surely, 2^124280940 is an apocalyptic number.

124280940 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 124280940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199584000).

124280940 is an abundant number, since it is smaller than the sum of its proper divisors (274887060).

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

124280940 is a wasteful number, since it uses less digits than its factorization.

124280940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 124280940 is about 11148.1361670909. The cubic root of 124280940 is about 499.0394090452.

The spelling of 124280940 in words is "one hundred twenty-four million, two hundred eighty thousand, nine hundred forty".