39710042 has 4 divisors (see below), whose sum is σ = 59565066. Its totient is φ = 19855020.

The previous prime is 39710023. The next prime is 39710051. The reversal of 39710042 is 24001793.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39450961 + 259081 = 6281^2 + 509^2 .

It is a junction number, because it is equal to n+sod(n) for n = 39709993 and 39710020.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9927509 + ... + 9927512.

Almost surely, 2^39710042 is an apocalyptic number.

39710042 is a deficient number, since it is larger than the sum of its proper divisors (19855024).

39710042 is a wasteful number, since it uses less digits than its factorization.

39710042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19855023.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 39710042 is about 6301.5904341682. The cubic root of 39710042 is about 341.1668158106.

It can be divided in two parts, 397100 and 42, that multiplied together give a triangular number (16678200 = T₅₇₇₅).

The spelling of 39710042 in words is "thirty-nine million, seven hundred ten thousand, forty-two".