42039711 has 24 divisors (see below), whose sum is σ = 69623840. Its totient is φ = 23944896.

The previous prime is 42039707. The next prime is 42039721. The reversal of 42039711 is 11793024.

It is not a de Polignac number, because 42039711 - 2² = 42039707 is a prime.

It is a super-3 number, since 3×42039711³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42039721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22605 + ... + 24393.

Almost surely, 2^42039711 is an apocalyptic number.

42039711 is a deficient number, since it is larger than the sum of its proper divisors (27584129).

42039711 is a wasteful number, since it uses less digits than its factorization.

42039711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175 (or 2172 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 42039711 is about 6483.8037447165. The cubic root of 42039711 is about 347.7121827525.

The spelling of 42039711 in words is "forty-two million, thirty-nine thousand, seven hundred eleven".