124340720 has 160 divisors (see below), whose sum is σ = 360298368. Its totient is φ = 38928384.

The previous prime is 124340717. The next prime is 124340729. The reversal of 124340720 is 27043421.

It is a super-2 number, since 2×124340720² = 30921229300236800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124340729) 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, 352064 + ... + 352416.

Almost surely, 2^124340720 is an apocalyptic number.

124340720 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 124340720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180149184).

124340720 is an abundant number, since it is smaller than the sum of its proper divisors (235957648).

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

124340720 is a wasteful number, since it uses less digits than its factorization.

124340720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 124340720 is about 11150.8170104257. The cubic root of 124340720 is about 499.1194100331.

The spelling of 124340720 in words is "one hundred twenty-four million, three hundred forty thousand, seven hundred twenty".