38681433 has 36 divisors (see below), whose sum is σ = 65445120. Its totient is φ = 21951216.

The previous prime is 38681429. The next prime is 38681437. The reversal of 38681433 is 33418683.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (38681429) and next prime (38681437).

It is not a de Polignac number, because 38681433 - 2² = 38681429 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38681437) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 105216 + ... + 105582.

It is an arithmetic number, because the mean of its divisors is an integer number (1817920).

Almost surely, 2^38681433 is an apocalyptic number.

It is an amenable number.

38681433 is a deficient number, since it is larger than the sum of its proper divisors (26763687).

38681433 is a wasteful number, since it uses less digits than its factorization.

38681433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 616 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 38681433 is about 6219.4399265529. The cubic root of 38681433 is about 338.1952614047.

The spelling of 38681433 in words is "thirty-eight million, six hundred eighty-one thousand, four hundred thirty-three".