42084642 has 8 divisors (see below), whose sum is σ = 84169296. Its totient is φ = 14028212.

The previous prime is 42084631. The next prime is 42084661. The reversal of 42084642 is 24648024.

It is a sphenic number, since it is the product of 3 distinct primes.

42084642 is an admirable number.

It is a super-2 number, since 2×42084642² = 3542234184536328, which contains 22 as substring.

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, 3507048 + ... + 3507059.

It is an arithmetic number, because the mean of its divisors is an integer number (10521162).

Almost surely, 2^42084642 is an apocalyptic number.

42084642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42084642 is a wasteful number, since it uses less digits than its factorization.

42084642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7014112.

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 42084642 is about 6487.2676837017. The cubic root of 42084642 is about 347.8360140314.

The spelling of 42084642 in words is "forty-two million, eighty-four thousand, six hundred forty-two".