42345744 has 80 divisors (see below), whose sum is σ = 125860992. Its totient is φ = 12017664.

The previous prime is 42345739. The next prime is 42345757. The reversal of 42345744 is 44754324.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64522 + ... + 65174.

Almost surely, 2^42345744 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 42345744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62930496).

42345744 is an abundant number, since it is smaller than the sum of its proper divisors (83515248).

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

42345744 is a wasteful number, since it uses less digits than its factorization.

42345744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864 (or 858 counting only the distinct ones).

The product of its digits is 53760, while the sum is 33.

The square root of 42345744 is about 6507.3607553293. The cubic root of 42345744 is about 348.5538808177.

The spelling of 42345744 in words is "forty-two million, three hundred forty-five thousand, seven hundred forty-four".