42457084 has 12 divisors (see below), whose sum is σ = 74353608. Its totient is φ = 21213200.

The previous prime is 42457069. The next prime is 42457087. The reversal of 42457084 is 48075424.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42457087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4314 + ... + 10174.

It is an arithmetic number, because the mean of its divisors is an integer number (6196134).

Almost surely, 2^42457084 is an apocalyptic number.

It is an amenable number.

42457084 is a deficient number, since it is larger than the sum of its proper divisors (31896524).

42457084 is a wasteful number, since it uses less digits than its factorization.

42457084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7676 (or 7674 counting only the distinct ones).

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

The square root of 42457084 is about 6515.9100669055. The cubic root of 42457084 is about 348.8590986295.

The spelling of 42457084 in words is "forty-two million, four hundred fifty-seven thousand, eighty-four".