34642881 has 24 divisors (see below), whose sum is σ = 61588800. Its totient is φ = 18272736.

The previous prime is 34642877. The next prime is 34642913. The reversal of 34642881 is 18824643.

34642881 is a `hidden beast` number, since 3 + 4 + 642 + 8 + 8 + 1 = 666.

It is not a de Polignac number, because 34642881 - 2² = 34642877 is a prime.

It is a super-2 number, since 2×34642881² = 2400258407960322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34642781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20331 + ... + 21968.

It is an arithmetic number, because the mean of its divisors is an integer number (2566200).

Almost surely, 2^34642881 is an apocalyptic number.

It is an amenable number.

34642881 is a deficient number, since it is larger than the sum of its proper divisors (26945919).

34642881 is a wasteful number, since it uses less digits than its factorization.

34642881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42325 (or 42322 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 34642881 is about 5885.8203336493. The cubic root of 34642881 is about 325.9902922825.

The spelling of 34642881 in words is "thirty-four million, six hundred forty-two thousand, eight hundred eighty-one".