33722742 has 8 divisors (see below), whose sum is σ = 67445496. Its totient is φ = 11240912.

The previous prime is 33722719. The next prime is 33722753. The reversal of 33722742 is 24722733.

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

33722742 is an admirable number.

It is a super-2 number, since 2×33722742² = 2274446655997128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2810223 + ... + 2810234.

It is an arithmetic number, because the mean of its divisors is an integer number (8430687).

Almost surely, 2^33722742 is an apocalyptic number.

33722742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

33722742 is a wasteful number, since it uses less digits than its factorization.

33722742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5620462.

The product of its digits is 14112, while the sum is 30.

The square root of 33722742 is about 5807.1285503250. The cubic root of 33722742 is about 323.0781792119.

Subtracting from 33722742 its reverse (24722733), we obtain a palindrome (9000009).

The spelling of 33722742 in words is "thirty-three million, seven hundred twenty-two thousand, seven hundred forty-two".