39249242 has 4 divisors (see below), whose sum is σ = 58873866. Its totient is φ = 19624620.

The previous prime is 39249241. The next prime is 39249251. The reversal of 39249242 is 24294293.

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., 34000561 + 5248681 = 5831^2 + 2291^2 .

It is not an unprimeable number, because it can be changed into a prime (39249241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9812309 + ... + 9812312.

Almost surely, 2^39249242 is an apocalyptic number.

39249242 is a deficient number, since it is larger than the sum of its proper divisors (19624624).

39249242 is a wasteful number, since it uses less digits than its factorization.

39249242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19624623.

The product of its digits is 31104, while the sum is 35.

The square root of 39249242 is about 6264.9215477929. The cubic root of 39249242 is about 339.8420315768.

The spelling of 39249242 in words is "thirty-nine million, two hundred forty-nine thousand, two hundred forty-two".