39752420 has 12 divisors (see below), whose sum is σ = 83480124. Its totient is φ = 15900960.

The previous prime is 39752413. The next prime is 39752483. The reversal of 39752420 is 2425793.

It is a happy number.

39752420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12545764 + 27206656 = 3542^2 + 5216^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 993791 + ... + 993830.

It is an arithmetic number, because the mean of its divisors is an integer number (6956677).

Almost surely, 2^39752420 is an apocalyptic number.

It is an amenable number.

39752420 is an abundant number, since it is smaller than the sum of its proper divisors (43727704).

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

39752420 is a wasteful number, since it uses less digits than its factorization.

39752420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987630 (or 1987628 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 39752420 is about 6304.9520220221. The cubic root of 39752420 is about 341.2881354779.

The spelling of 39752420 in words is "thirty-nine million, seven hundred fifty-two thousand, four hundred twenty".