38522891 has 12 divisors (see below), whose sum is σ = 43149456. Its totient is φ = 34354320.

The previous prime is 38522851. The next prime is 38522909. The reversal of 38522891 is 19822583.

It is a de Polignac number, because none of the positive numbers 2^k-38522891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38522831) 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 11 ways as a sum of consecutive naturals, for example, 3410 + ... + 9416.

It is an arithmetic number, because the mean of its divisors is an integer number (3595788).

Almost surely, 2^38522891 is an apocalyptic number.

38522891 is a deficient number, since it is larger than the sum of its proper divisors (4626565).

38522891 is a wasteful number, since it uses less digits than its factorization.

38522891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6082 (or 6071 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 38522891 is about 6206.6811582359. The cubic root of 38522891 is about 337.7325796958.

The spelling of 38522891 in words is "thirty-eight million, five hundred twenty-two thousand, eight hundred ninety-one".