39492890 has 16 divisors (see below), whose sum is σ = 71988480. Its totient is φ = 15596880.

The previous prime is 39492857. The next prime is 39492907. The reversal of 39492890 is 9829493.

39492890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 24206 + ... + 25785.

It is an arithmetic number, because the mean of its divisors is an integer number (4499280).

Almost surely, 2^39492890 is an apocalyptic number.

39492890 is a deficient number, since it is larger than the sum of its proper divisors (32495590).

39492890 is a wasteful number, since it uses less digits than its factorization.

39492890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50077.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 39492890 is about 6284.3368783031. The cubic root of 39492890 is about 340.5437953045.

The spelling of 39492890 in words is "thirty-nine million, four hundred ninety-two thousand, eight hundred ninety".