38262991 has 8 divisors (see below), whose sum is σ = 42165200. Its totient is φ = 34497792.

The previous prime is 38262989. The next prime is 38262997. The reversal of 38262991 is 19926283.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 38262991 - 2¹ = 38262989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38262997) 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, 33666 + ... + 34783.

It is an arithmetic number, because the mean of its divisors is an integer number (5270650).

Almost surely, 2^38262991 is an apocalyptic number.

38262991 is a deficient number, since it is larger than the sum of its proper divisors (3902209).

38262991 is a wasteful number, since it uses less digits than its factorization.

38262991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68505.

The product of its digits is 46656, while the sum is 40.

The square root of 38262991 is about 6185.7086093672. The cubic root of 38262991 is about 336.9713453786.

The spelling of 38262991 in words is "thirty-eight million, two hundred sixty-two thousand, nine hundred ninety-one".