39379770 has 80 divisors (see below), whose sum is σ = 107758728. Its totient is φ = 10316160.

The previous prime is 39379763. The next prime is 39379783. The reversal of 39379770 is 7797393.

39379770 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 4 ways, for example, as 20169081 + 19210689 = 4491^2 + 4383^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

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 39 ways as a sum of consecutive naturals, for example, 49012 + ... + 49808.

Almost surely, 2^39379770 is an apocalyptic number.

39379770 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 39379770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53879364).

39379770 is an abundant number, since it is smaller than the sum of its proper divisors (68378958).

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

39379770 is a wasteful number, since it uses less digits than its factorization.

39379770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 250047, while the sum is 45.

The square root of 39379770 is about 6275.3302701930. The cubic root of 39379770 is about 340.2183430289.

The spelling of 39379770 in words is "thirty-nine million, three hundred seventy-nine thousand, seven hundred seventy".