39249394 has 4 divisors (see below), whose sum is σ = 58874094. Its totient is φ = 19624696.

The previous prime is 39249391. The next prime is 39249403. The reversal of 39249394 is 49394293.

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., 38601369 + 648025 = 6213^2 + 805^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 39249394.

It is not an unprimeable number, because it can be changed into a prime (39249391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9812347 + ... + 9812350.

Almost surely, 2^39249394 is an apocalyptic number.

39249394 is a deficient number, since it is larger than the sum of its proper divisors (19624700).

39249394 is a wasteful number, since it uses less digits than its factorization.

39249394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19624699.

The product of its digits is 209952, while the sum is 43.

The square root of 39249394 is about 6264.9336788190. The cubic root of 39249394 is about 339.8424702768.

The spelling of 39249394 in words is "thirty-nine million, two hundred forty-nine thousand, three hundred ninety-four".