124689440 has 96 divisors (see below), whose sum is σ = 317592576. Its totient is φ = 46126080.

The previous prime is 124689427. The next prime is 124689469. The reversal of 124689440 is 44986421.

It is a junction number, because it is equal to n+sod(n) for n = 124689394 and 124689403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113534 + ... + 114626.

It is an arithmetic number, because the mean of its divisors is an integer number (3308256).

Almost surely, 2^124689440 is an apocalyptic number.

124689440 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 124689440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158796288).

124689440 is an abundant number, since it is smaller than the sum of its proper divisors (192903136).

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

124689440 is a wasteful number, since it uses less digits than its factorization.

124689440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 124689440 is about 11166.4425848163. The cubic root of 124689440 is about 499.5855766014.

The spelling of 124689440 in words is "one hundred twenty-four million, six hundred eighty-nine thousand, four hundred forty".