42003594 has 12 divisors (see below), whose sum is σ = 91007826. Its totient is φ = 14001192.

The previous prime is 42003593. The next prime is 42003607. The reversal of 42003594 is 49530024.

It can be written as a sum of positive squares in only one way, i.e., 36542025 + 5461569 = 6045^2 + 2337^2 .

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 not an unprimeable number, because it can be changed into a prime (42003593) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1166749 + ... + 1166784.

Almost surely, 2^42003594 is an apocalyptic number.

42003594 is an abundant number, since it is smaller than the sum of its proper divisors (49004232).

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

42003594 is a wasteful number, since it uses less digits than its factorization.

42003594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333541 (or 2333538 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 42003594 is about 6481.0179755961. The cubic root of 42003594 is about 347.6125791580.

The spelling of 42003594 in words is "forty-two million, three thousand, five hundred ninety-four".