42147804 has 12 divisors (see below), whose sum is σ = 98344904. Its totient is φ = 14049264.

The previous prime is 42147769. The next prime is 42147827. The reversal of 42147804 is 40874124.

It is a tau number, because it is divible by the number of its divisors (12).

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, 1756147 + ... + 1756170.

Almost surely, 2^42147804 is an apocalyptic number.

It is an amenable number.

42147804 is an abundant number, since it is smaller than the sum of its proper divisors (56197100).

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

42147804 is a wasteful number, since it uses less digits than its factorization.

42147804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512324 (or 3512322 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 42147804 is about 6492.1340097074. The cubic root of 42147804 is about 348.0099415841.

The spelling of 42147804 in words is "forty-two million, one hundred forty-seven thousand, eight hundred four".