42147036 has 18 divisors (see below), whose sum is σ = 106538432. Its totient is φ = 14049000.

The previous prime is 42147019. The next prime is 42147043. The reversal of 42147036 is 63074124.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 585340 + ... + 585411.

Almost surely, 2^42147036 is an apocalyptic number.

It is an amenable number.

42147036 is an abundant number, since it is smaller than the sum of its proper divisors (64391396).

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

42147036 is a wasteful number, since it uses less digits than its factorization.

42147036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170761 (or 1170756 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 42147036 is about 6492.0748609362. The cubic root of 42147036 is about 348.0078278065.

The spelling of 42147036 in words is "forty-two million, one hundred forty-seven thousand, thirty-six".