39229493 has 4 divisors (see below), whose sum is σ = 39242028. Its totient is φ = 39216960.

The previous prime is 39229457. The next prime is 39229499. The reversal of 39229493 is 39492293.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 20584369 + 18645124 = 4537^2 + 4318^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39229493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39229493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39229499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2813 + ... + 9293.

It is an arithmetic number, because the mean of its divisors is an integer number (9810507).

Almost surely, 2^39229493 is an apocalyptic number.

It is an amenable number.

39229493 is a deficient number, since it is larger than the sum of its proper divisors (12535).

39229493 is an equidigital number, since it uses as much as digits as its factorization.

39229493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12534.

The product of its digits is 104976, while the sum is 41.

The square root of 39229493 is about 6263.3451924670. The cubic root of 39229493 is about 339.7850226943.

The spelling of 39229493 in words is "thirty-nine million, two hundred twenty-nine thousand, four hundred ninety-three".