39380290 has 8 divisors (see below), whose sum is σ = 70884540. Its totient is φ = 15752112.

The previous prime is 39380267. The next prime is 39380329. The reversal of 39380290 is 9208393.

It can be written as a sum of positive squares in 2 ways, for example, as 39175081 + 205209 = 6259^2 + 453^2 .

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

It is an unprimeable number.

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, 1969005 + ... + 1969024.

Almost surely, 2^39380290 is an apocalyptic number.

39380290 is a deficient number, since it is larger than the sum of its proper divisors (31504250).

39380290 is a wasteful number, since it uses less digits than its factorization.

39380290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3938036.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 39380290 is about 6275.3717021384. The cubic root of 39380290 is about 340.2198405217.

The spelling of 39380290 in words is "thirty-nine million, three hundred eighty thousand, two hundred ninety".