38422691 has 4 divisors (see below), whose sum is σ = 38996232. Its totient is φ = 37849152.

The previous prime is 38422679. The next prime is 38422711. The reversal of 38422691 is 19622483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19622483 = 71 ⋅276373.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38422691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38422621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286670 + ... + 286803.

It is an arithmetic number, because the mean of its divisors is an integer number (9749058).

Almost surely, 2^38422691 is an apocalyptic number.

38422691 is a deficient number, since it is larger than the sum of its proper divisors (573541).

38422691 is an equidigital number, since it uses as much as digits as its factorization.

38422691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573540.

The product of its digits is 20736, while the sum is 35.

The square root of 38422691 is about 6198.6039557307. The cubic root of 38422691 is about 337.4395055726.

The spelling of 38422691 in words is "thirty-eight million, four hundred twenty-two thousand, six hundred ninety-one".