42744732 has 24 divisors (see below), whose sum is σ = 105605136. Its totient is φ = 13410048.

The previous prime is 42744721. The next prime is 42744763. The reversal of 42744732 is 23744724.

42744732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42744732² = 3654224227503648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42744693 and 42744702.

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 7 ways as a sum of consecutive naturals, for example, 104563 + ... + 104970.

It is an arithmetic number, because the mean of its divisors is an integer number (4400214).

Almost surely, 2^42744732 is an apocalyptic number.

It is an amenable number.

42744732 is an abundant number, since it is smaller than the sum of its proper divisors (62860404).

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

42744732 is a wasteful number, since it uses less digits than its factorization.

42744732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209557 (or 209555 counting only the distinct ones).

The product of its digits is 37632, while the sum is 33.

The square root of 42744732 is about 6537.9455488708. The cubic root of 42744732 is about 349.6451696459.

The spelling of 42744732 in words is "forty-two million, seven hundred forty-four thousand, seven hundred thirty-two".