39390734 has 8 divisors (see below), whose sum is σ = 62561808. Its totient is φ = 18536800.

The previous prime is 39390733. The next prime is 39390749. The reversal of 39390734 is 43709393.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39390731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579242 + ... + 579309.

It is an arithmetic number, because the mean of its divisors is an integer number (7820226).

Almost surely, 2^39390734 is an apocalyptic number.

39390734 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

39390734 is a deficient number, since it is larger than the sum of its proper divisors (23171074).

39390734 is a wasteful number, since it uses less digits than its factorization.

39390734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158570.

The product of its (nonzero) digits is 61236, while the sum is 38.

The square root of 39390734 is about 6276.2037889157. The cubic root of 39390734 is about 340.2499142967.

The spelling of 39390734 in words is "thirty-nine million, three hundred ninety thousand, seven hundred thirty-four".