39828740 has 48 divisors (see below), whose sum is σ = 97638912. Its totient is φ = 13362816.

The previous prime is 39828713. The next prime is 39828749. The reversal of 39828740 is 4782893.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (39828749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3554 + ... + 9606.

It is an arithmetic number, because the mean of its divisors is an integer number (2034144).

Almost surely, 2^39828740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39828740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48819456).

39828740 is an abundant number, since it is smaller than the sum of its proper divisors (57810172).

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

39828740 is a wasteful number, since it uses less digits than its factorization.

39828740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6116 (or 6114 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 39828740 is about 6311.0015053080. The cubic root of 39828740 is about 341.5064069619.

The spelling of 39828740 in words is "thirty-nine million, eight hundred twenty-eight thousand, seven hundred forty".