124787442 has 16 divisors (see below), whose sum is σ = 268773120. Its totient is φ = 38396112.

The previous prime is 124787437. The next prime is 124787447. The reversal of 124787442 is 244787421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (124787437) and next prime (124787447).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 124787442.

It is not an unprimeable number, because it can be changed into a prime (124787447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 799842 + ... + 799997.

It is an arithmetic number, because the mean of its divisors is an integer number (16798320).

Almost surely, 2^124787442 is an apocalyptic number.

124787442 is an abundant number, since it is smaller than the sum of its proper divisors (143985678).

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

124787442 is a wasteful number, since it uses less digits than its factorization.

124787442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599857.

The product of its digits is 100352, while the sum is 39.

The square root of 124787442 is about 11170.8299602133. The cubic root of 124787442 is about 499.7164285382.

The spelling of 124787442 in words is "one hundred twenty-four million, seven hundred eighty-seven thousand, four hundred forty-two".