38791490 has 8 divisors (see below), whose sum is σ = 69824700. Its totient is φ = 15516592.

The previous prime is 38791481. The next prime is 38791499. The reversal of 38791490 is 9419783.

It is a happy number.

38791490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (38791481) and next prime (38791499).

It can be written as a sum of positive squares in 2 ways, for example, as 37957921 + 833569 = 6161^2 + 913^2 .

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

It is not an unprimeable number, because it can be changed into a prime (38791499) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1939565 + ... + 1939584.

Almost surely, 2^38791490 is an apocalyptic number.

38791490 is a deficient number, since it is larger than the sum of its proper divisors (31033210).

38791490 is a wasteful number, since it uses less digits than its factorization.

38791490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3879156.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 38791490 is about 6228.2814644170. The cubic root of 38791490 is about 338.5157037836.

The spelling of 38791490 in words is "thirty-eight million, seven hundred ninety-one thousand, four hundred ninety".