33722340 has 48 divisors (see below), whose sum is σ = 99395520. Its totient is φ = 8519040.

The previous prime is 33722333. The next prime is 33722357. The reversal of 33722340 is 4322733.

It is a happy number.

It is a super-2 number, since 2×33722340² = 2274392430151200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33722340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13651 + ... + 15930.

It is an arithmetic number, because the mean of its divisors is an integer number (2070740).

Almost surely, 2^33722340 is an apocalyptic number.

33722340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33722340 is an abundant number, since it is smaller than the sum of its proper divisors (65673180).

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

33722340 is a wasteful number, since it uses less digits than its factorization.

33722340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29612 (or 29610 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 24.

The square root of 33722340 is about 5807.0939375905. The cubic root of 33722340 is about 323.0768954300.

The spelling of 33722340 in words is "thirty-three million, seven hundred twenty-two thousand, three hundred forty".