124790640 has 320 divisors, whose sum is σ = 455970816. Its totient is φ = 27979776.

The previous prime is 124790623. The next prime is 124790657. The reversal of 124790640 is 46097421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (124790623) and next prime (124790657).

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 2655097 + ... + 2655143.

Almost surely, 2^124790640 is an apocalyptic number.

124790640 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 124790640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227985408).

124790640 is an abundant number, since it is smaller than the sum of its proper divisors (331180176).

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

124790640 is a wasteful number, since it uses less digits than its factorization.

124790640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 124790640 is about 11170.9730999587. The cubic root of 124790640 is about 499.7206973424.

The spelling of 124790640 in words is "one hundred twenty-four million, seven hundred ninety thousand, six hundred forty".