39780058 has 4 divisors (see below), whose sum is σ = 59670090. Its totient is φ = 19890028.

The previous prime is 39780049. The next prime is 39780061. The reversal of 39780058 is 85008793.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37417689 + 2362369 = 6117^2 + 1537^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 39780058.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9945013 + ... + 9945016.

Almost surely, 2^39780058 is an apocalyptic number.

39780058 is a deficient number, since it is larger than the sum of its proper divisors (19890032).

39780058 is a wasteful number, since it uses less digits than its factorization.

39780058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19890031.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 39780058 is about 6307.1434104514. The cubic root of 39780058 is about 341.3672110523.

The spelling of 39780058 in words is "thirty-nine million, seven hundred eighty thousand, fifty-eight".