33664442 has 16 divisors (see below), whose sum is σ = 59053632. Its totient is φ = 14091840.

The previous prime is 33664441. The next prime is 33664453. The reversal of 33664442 is 24446633.

It is a super-2 number, since 2×33664442² = 2266589310342728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33664399 and 33664408.

It is not an unprimeable number, because it can be changed into a prime (33664441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27359 + ... + 28562.

It is an arithmetic number, because the mean of its divisors is an integer number (3690852).

Almost surely, 2^33664442 is an apocalyptic number.

33664442 is a deficient number, since it is larger than the sum of its proper divisors (25389190).

33664442 is a wasteful number, since it uses less digits than its factorization.

33664442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55973.

The product of its digits is 41472, while the sum is 32.

The square root of 33664442 is about 5802.1066863683. The cubic root of 33664442 is about 322.8918922392.

The spelling of 33664442 in words is "thirty-three million, six hundred sixty-four thousand, four hundred forty-two".