124071240 has 32 divisors (see below), whose sum is σ = 372214080. Its totient is φ = 33085632.

The previous prime is 124071239. The next prime is 124071247. The reversal of 124071240 is 42170421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (124071247) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 516844 + ... + 517083.

It is an arithmetic number, because the mean of its divisors is an integer number (11631690).

Almost surely, 2^124071240 is an apocalyptic number.

124071240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124071240 is an abundant number, since it is smaller than the sum of its proper divisors (248142840).

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

124071240 is a wasteful number, since it uses less digits than its factorization.

124071240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033941 (or 1033937 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 124071240 is about 11138.7270367848. The cubic root of 124071240 is about 498.7585736053.

The spelling of 124071240 in words is "one hundred twenty-four million, seventy-one thousand, two hundred forty".