39381486 has 16 divisors (see below), whose sum is σ = 83396304. Its totient is φ = 12354944.

The previous prime is 39381481. The next prime is 39381487. The reversal of 39381486 is 68418393.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39381481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192945 + ... + 193148.

It is an arithmetic number, because the mean of its divisors is an integer number (5212269).

Almost surely, 2^39381486 is an apocalyptic number.

39381486 is an abundant number, since it is smaller than the sum of its proper divisors (44014818).

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

39381486 is a wasteful number, since it uses less digits than its factorization.

39381486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386115.

The product of its digits is 124416, while the sum is 42.

The square root of 39381486 is about 6275.4669945750. The cubic root of 39381486 is about 340.2232847050.

The spelling of 39381486 in words is "thirty-nine million, three hundred eighty-one thousand, four hundred eighty-six".