38240909 has 8 divisors (see below), whose sum is σ = 44445120. Its totient is φ = 32222016.

The previous prime is 38240903. The next prime is 38240911. The reversal of 38240909 is 90904283.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38240909 is a prime.

It is a super-2 number, since 2×38240909² = 2924734242292562, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38240903) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45884 + ... + 46709.

It is an arithmetic number, because the mean of its divisors is an integer number (5555640).

Almost surely, 2^38240909 is an apocalyptic number.

It is an amenable number.

38240909 is a deficient number, since it is larger than the sum of its proper divisors (6204211).

38240909 is an equidigital number, since it uses as much as digits as its factorization.

38240909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92659.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 38240909 is about 6183.9234309619. The cubic root of 38240909 is about 336.9065095939.

The spelling of 38240909 in words is "thirty-eight million, two hundred forty thousand, nine hundred nine".