33722380 has 12 divisors (see below), whose sum is σ = 70817040. Its totient is φ = 13488944.

The previous prime is 33722357. The next prime is 33722383. The reversal of 33722380 is 8322733.

It is a super-2 number, since 2×33722380² = 2274397825728800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33722383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843040 + ... + 843079.

It is an arithmetic number, because the mean of its divisors is an integer number (5901420).

Almost surely, 2^33722380 is an apocalyptic number.

It is an amenable number.

33722380 is an abundant number, since it is smaller than the sum of its proper divisors (37094660).

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

33722380 is a wasteful number, since it uses less digits than its factorization.

33722380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686128 (or 1686126 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 33722380 is about 5807.0973816529. The cubic root of 33722380 is about 323.0770231699.

The spelling of 33722380 in words is "thirty-three million, seven hundred twenty-two thousand, three hundred eighty".