42704124 has 72 divisors (see below), whose sum is σ = 107101680. Its totient is φ = 13224960.

The previous prime is 42704111. The next prime is 42704171. The reversal of 42704124 is 42140724.

It is a junction number, because it is equal to n+sod(n) for n = 42704094 and 42704103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 584952 + ... + 585024.

Almost surely, 2^42704124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42704124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53550840).

42704124 is an abundant number, since it is smaller than the sum of its proper divisors (64397556).

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

42704124 is a wasteful number, since it uses less digits than its factorization.

42704124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 42704124 is about 6534.8392482141. The cubic root of 42704124 is about 349.5344122186.

Adding to 42704124 its reverse (42140724), we get a palindrome (84844848).

The spelling of 42704124 in words is "forty-two million, seven hundred four thousand, one hundred twenty-four".