38162643 has 16 divisors (see below), whose sum is σ = 52816896. Its totient is φ = 24484320.

The previous prime is 38162639. The next prime is 38162669. The reversal of 38162643 is 34626183.

It is not a de Polignac number, because 38162643 - 2² = 38162639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38162623) 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 15 ways as a sum of consecutive naturals, for example, 17280 + ... + 19362.

It is an arithmetic number, because the mean of its divisors is an integer number (3301056).

Almost surely, 2^38162643 is an apocalyptic number.

38162643 is a deficient number, since it is larger than the sum of its proper divisors (14654253).

38162643 is a wasteful number, since it uses less digits than its factorization.

38162643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314.

The product of its digits is 20736, while the sum is 33.

The square root of 38162643 is about 6177.5920065993. The cubic root of 38162643 is about 336.6765086602.

The spelling of 38162643 in words is "thirty-eight million, one hundred sixty-two thousand, six hundred forty-three".