38794509 has 12 divisors (see below), whose sum is σ = 60347196. Its totient is φ = 23873472.

The previous prime is 38794507. The next prime is 38794513. The reversal of 38794509 is 90549783.

It can be written as a sum of positive squares in 2 ways, for example, as 4536900 + 34257609 = 2130^2 + 5853^2 .

It is not a de Polignac number, because 38794509 - 2¹ = 38794507 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38794501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165672 + ... + 165905.

It is an arithmetic number, because the mean of its divisors is an integer number (5028933).

Almost surely, 2^38794509 is an apocalyptic number.

38794509 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

38794509 is a deficient number, since it is larger than the sum of its proper divisors (21552687).

38794509 is a wasteful number, since it uses less digits than its factorization.

38794509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331596 (or 331593 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 38794509 is about 6228.5238219019. The cubic root of 38794509 is about 338.5244853694.

The spelling of 38794509 in words is "thirty-eight million, seven hundred ninety-four thousand, five hundred nine".