33722004 has 12 divisors (see below), whose sum is σ = 78684704. Its totient is φ = 11240664.

The previous prime is 33721993. The next prime is 33722023. The reversal of 33722004 is 40022733.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×33722004² = 2274347107552032, 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, 1405072 + ... + 1405095.

Almost surely, 2^33722004 is an apocalyptic number.

It is an amenable number.

33722004 is an abundant number, since it is smaller than the sum of its proper divisors (44962700).

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

33722004 is a wasteful number, since it uses less digits than its factorization.

33722004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810174 (or 2810172 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 33722004 is about 5807.0650073854. The cubic root of 33722004 is about 323.0758224103.

Adding to 33722004 its reverse (40022733), we get a palindrome (73744737).

The spelling of 33722004 in words is "thirty-three million, seven hundred twenty-two thousand, four".