33722690 has 8 divisors (see below), whose sum is σ = 60700860. Its totient is φ = 13489072.

The previous prime is 33722671. The next prime is 33722693. The reversal of 33722690 is 9622733.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 33097009 + 625681 = 5753^2 + 791^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×33722690² = 2274439641672200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33722693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1686125 + ... + 1686144.

Almost surely, 2^33722690 is an apocalyptic number.

33722690 is a deficient number, since it is larger than the sum of its proper divisors (26978170).

33722690 is a wasteful number, since it uses less digits than its factorization.

33722690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372276.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 33722690 is about 5807.1240730675. The cubic root of 33722690 is about 323.0780131512.

The spelling of 33722690 in words is "thirty-three million, seven hundred twenty-two thousand, six hundred ninety".