42539002 has 12 divisors (see below), whose sum is σ = 70137018. Its totient is φ = 19335800.

The previous prime is 42538973. The next prime is 42539023. The reversal of 42539002 is 20093524.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 36735721 + 5803281 = 6061^2 + 2409^2 .

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, 87649 + ... + 88132.

Almost surely, 2^42539002 is an apocalyptic number.

42539002 is a deficient number, since it is larger than the sum of its proper divisors (27598016).

42539002 is a wasteful number, since it uses less digits than its factorization.

42539002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175805 (or 175794 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 42539002 is about 6522.1930360884. The cubic root of 42539002 is about 349.0833209655.

The spelling of 42539002 in words is "forty-two million, five hundred thirty-nine thousand, two".