38743434 has 28 divisors (see below), whose sum is σ = 87136146. Its totient is φ = 12913992.

The previous prime is 38743433. The next prime is 38743457. The reversal of 38743434 is 43434783.

It is a happy number.

38743434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 19847025 + 18896409 = 4455^2 + 4347^2 .

It is a super-2 number, since 2×38743434² = 3002107356224712, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (38743433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 11829 + ... + 14744.

Almost surely, 2^38743434 is an apocalyptic number.

38743434 is an abundant number, since it is smaller than the sum of its proper divisors (48392712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38743434 is an equidigital number, since it uses as much as digits as its factorization.

38743434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26593 (or 26578 counting only the distinct ones).

The product of its digits is 96768, while the sum is 36.

The square root of 38743434 is about 6224.4223828400. The cubic root of 38743434 is about 338.3758583955.

The spelling of 38743434 in words is "thirty-eight million, seven hundred forty-three thousand, four hundred thirty-four".