42085744 has 20 divisors (see below), whose sum is σ = 86338224. Its totient is φ = 19804928.

The previous prime is 42085711. The next prime is 42085753. The reversal of 42085744 is 44758024.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77092 + ... + 77635.

Almost surely, 2^42085744 is an apocalyptic number.

It is an amenable number.

42085744 is an abundant number, since it is smaller than the sum of its proper divisors (44252480).

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

42085744 is a wasteful number, since it uses less digits than its factorization.

42085744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154752 (or 154746 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 42085744 is about 6487.3526187498. The cubic root of 42085744 is about 347.8390500712.

The spelling of 42085744 in words is "forty-two million, eighty-five thousand, seven hundred forty-four".