39420858 has 32 divisors (see below), whose sum is σ = 87877440. Its totient is φ = 11715840.

The previous prime is 39420847. The next prime is 39420907. The reversal of 39420858 is 85802493.

It is a happy number.

39420858 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 15 ways as a sum of consecutive naturals, for example, 8233 + ... + 12108.

It is an arithmetic number, because the mean of its divisors is an integer number (2746170).

Almost surely, 2^39420858 is an apocalyptic number.

39420858 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

39420858 is an abundant number, since it is smaller than the sum of its proper divisors (48456582).

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

39420858 is a wasteful number, since it uses less digits than its factorization.

39420858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20382.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 39420858 is about 6278.6031886081. The cubic root of 39420858 is about 340.3366273861.

The spelling of 39420858 in words is "thirty-nine million, four hundred twenty thousand, eight hundred fifty-eight".