39825740 has 24 divisors (see below), whose sum is σ = 85580880. Its totient is φ = 15559488.

The previous prime is 39825707. The next prime is 39825749. The reversal of 39825740 is 4752893.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 39825694 and 39825703.

It is not an unprimeable number, because it can be changed into a prime (39825749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22295 + ... + 24014.

It is an arithmetic number, because the mean of its divisors is an integer number (3565870).

Almost surely, 2^39825740 is an apocalyptic number.

It is an amenable number.

39825740 is an abundant number, since it is smaller than the sum of its proper divisors (45755140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39825740 is a wasteful number, since it uses less digits than its factorization.

39825740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46361 (or 46359 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 39825740 is about 6310.7638206480. The cubic root of 39825740 is about 341.4978323753.

The spelling of 39825740 in words is "thirty-nine million, eight hundred twenty-five thousand, seven hundred forty".