124249860 has 144 divisors (see below), whose sum is σ = 444767232. Its totient is φ = 27475200.

The previous prime is 124249859. The next prime is 124249871. The reversal of 124249860 is 68942421.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37470 + ... + 40650.

Almost surely, 2^124249860 is an apocalyptic number.

124249860 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 124249860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222383616).

124249860 is an abundant number, since it is smaller than the sum of its proper divisors (320517372).

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

124249860 is a wasteful number, since it uses less digits than its factorization.

124249860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234 (or 3229 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 124249860 is about 11146.7421249440. The cubic root of 124249860 is about 498.9978058894.

The spelling of 124249860 in words is "one hundred twenty-four million, two hundred forty-nine thousand, eight hundred sixty".