39115420 has 12 divisors (see below), whose sum is σ = 82142424. Its totient is φ = 15646160.

The previous prime is 39115409. The next prime is 39115469. The reversal of 39115420 is 2451193.

39115420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 977866 + ... + 977905.

It is an arithmetic number, because the mean of its divisors is an integer number (6845202).

Almost surely, 2^39115420 is an apocalyptic number.

It is an amenable number.

39115420 is an abundant number, since it is smaller than the sum of its proper divisors (43027004).

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

39115420 is a wasteful number, since it uses less digits than its factorization.

39115420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955780 (or 1955778 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 39115420 is about 6254.2321671009. The cubic root of 39115420 is about 339.4553563788.

The spelling of 39115420 in words is "thirty-nine million, one hundred fifteen thousand, four hundred twenty".