39340725 has 24 divisors (see below), whose sum is σ = 66022560. Its totient is φ = 20665920.

The previous prime is 39340723. The next prime is 39340781. The reversal of 39340725 is 52704393.

It is a happy number.

It is not a de Polignac number, because 39340725 - 2¹ = 39340723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39340723) 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, 1111 + ... + 8939.

It is an arithmetic number, because the mean of its divisors is an integer number (2750940).

Almost surely, 2^39340725 is an apocalyptic number.

It is an amenable number.

39340725 is a deficient number, since it is larger than the sum of its proper divisors (26681835).

39340725 is a wasteful number, since it uses less digits than its factorization.

39340725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7909 (or 7904 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 39340725 is about 6272.2185070356. The cubic root of 39340725 is about 340.1058638049.

The spelling of 39340725 in words is "thirty-nine million, three hundred forty thousand, seven hundred twenty-five".