39042291 has 24 divisors (see below), whose sum is σ = 54832176. Its totient is φ = 24693760.

The previous prime is 39042271. The next prime is 39042301. The reversal of 39042291 is 19224093.

It is not a de Polignac number, because 39042291 - 2²³ = 30653683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39042271) 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, 345451 + ... + 345563.

It is an arithmetic number, because the mean of its divisors is an integer number (2284674).

Almost surely, 2^39042291 is an apocalyptic number.

39042291 is a deficient number, since it is larger than the sum of its proper divisors (15789885).

39042291 is a wasteful number, since it uses less digits than its factorization.

39042291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 39042291 is about 6248.3830708432. The cubic root of 39042291 is about 339.2436792709.

The spelling of 39042291 in words is "thirty-nine million, forty-two thousand, two hundred ninety-one".