42745084 has 12 divisors (see below), whose sum is σ = 75046608. Its totient is φ = 21303200.

The previous prime is 42745081. The next prime is 42745091. The reversal of 42745084 is 48054724.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42745081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15937 + ... + 18424.

It is an arithmetic number, because the mean of its divisors is an integer number (6253884).

Almost surely, 2^42745084 is an apocalyptic number.

It is an amenable number.

42745084 is a deficient number, since it is larger than the sum of its proper divisors (32301524).

42745084 is a wasteful number, since it uses less digits than its factorization.

42745084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34676 (or 34674 counting only the distinct ones).

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

The square root of 42745084 is about 6537.9724685869. The cubic root of 42745084 is about 349.6461294114.

The spelling of 42745084 in words is "forty-two million, seven hundred forty-five thousand, eighty-four".