124247740 has 12 divisors (see below), whose sum is σ = 260920296. Its totient is φ = 49699088.

The previous prime is 124247737. The next prime is 124247749. The reversal of 124247740 is 47742421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124247749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3106174 + ... + 3106213.

It is an arithmetic number, because the mean of its divisors is an integer number (21743358).

Almost surely, 2^124247740 is an apocalyptic number.

124247740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124247740 is an abundant number, since it is smaller than the sum of its proper divisors (136672556).

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

124247740 is a wasteful number, since it uses less digits than its factorization.

124247740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6212396 (or 6212394 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 31.

The square root of 124247740 is about 11146.6470294883. The cubic root of 124247740 is about 498.9949678409.

It can be divided in two parts, 12424 and 7740, that added together give a square (20164 = 142²).

The spelling of 124247740 in words is "one hundred twenty-four million, two hundred forty-seven thousand, seven hundred forty".