33422913 has 24 divisors (see below), whose sum is σ = 50417640. Its totient is φ = 21315840.

The previous prime is 33422903. The next prime is 33422927. The reversal of 33422913 is 31922433.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 106929 + 33315984 = 327^2 + 5772^2 .

It is not a de Polignac number, because 33422913 - 2⁴ = 33422897 is a prime.

It is a super-2 number, since 2×33422913² = 2234182226811138, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33422903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18703 + ... + 20411.

It is an arithmetic number, because the mean of its divisors is an integer number (2100735).

Almost surely, 2^33422913 is an apocalyptic number.

It is an amenable number.

33422913 is a deficient number, since it is larger than the sum of its proper divisors (16994727).

33422913 is a wasteful number, since it uses less digits than its factorization.

33422913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809 (or 1806 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 33422913 is about 5781.2553135111. The cubic root of 33422913 is about 322.1178310580.

The spelling of 33422913 in words is "thirty-three million, four hundred twenty-two thousand, nine hundred thirteen".