42039702 has 16 divisors (see below), whose sum is σ = 93421680. Its totient is φ = 14013216.

The previous prime is 42039677. The next prime is 42039707. The reversal of 42039702 is 20793024.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42039707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389203 + ... + 389310.

It is an arithmetic number, because the mean of its divisors is an integer number (5838855).

Almost surely, 2^42039702 is an apocalyptic number.

42039702 is an abundant number, since it is smaller than the sum of its proper divisors (51381978).

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

42039702 is a wasteful number, since it uses less digits than its factorization.

42039702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778524 (or 778518 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 42039702 is about 6483.8030506794. The cubic root of 42039702 is about 347.7121579394.

The spelling of 42039702 in words is "forty-two million, thirty-nine thousand, seven hundred two".