38831434 has 16 divisors (see below), whose sum is σ = 61793928. Its totient is φ = 18237952.

The previous prime is 38831431. The next prime is 38831453. The reversal of 38831434 is 43413883.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 38626225 + 205209 = 6215^2 + 453^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 38831434.

It is not an unprimeable number, because it can be changed into a prime (38831431) 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, 26382 + ... + 27814.

Almost surely, 2^38831434 is an apocalyptic number.

38831434 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

38831434 is a deficient number, since it is larger than the sum of its proper divisors (22962494).

38831434 is a wasteful number, since it uses less digits than its factorization.

38831434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249.

The product of its digits is 27648, while the sum is 34.

The square root of 38831434 is about 6231.4873024022. The cubic root of 38831434 is about 338.6318549703.

The spelling of 38831434 in words is "thirty-eight million, eight hundred thirty-one thousand, four hundred thirty-four".