34072281 has 6 divisors (see below), whose sum is σ = 49215530. Its totient is φ = 22714848.

The previous prime is 34072279. The next prime is 34072307. The reversal of 34072281 is 18227043.

It can be written as a sum of positive squares in only one way, i.e., 24206400 + 9865881 = 4920^2 + 3141^2 .

It is not a de Polignac number, because 34072281 - 2¹ = 34072279 is a prime.

It is a super-2 number, since 2×34072281² = 2321840665085922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34076281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1892896 + ... + 1892913.

Almost surely, 2^34072281 is an apocalyptic number.

It is an amenable number.

34072281 is a deficient number, since it is larger than the sum of its proper divisors (15143249).

34072281 is a wasteful number, since it uses less digits than its factorization.

34072281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3785815 (or 3785812 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 34072281 is about 5837.1466488345. The cubic root of 34072281 is about 324.1905885985.

The spelling of 34072281 in words is "thirty-four million, seventy-two thousand, two hundred eighty-one".