33490506 has 32 divisors (see below), whose sum is σ = 76953600. Its totient is φ = 9518256.

The previous prime is 33490477. The next prime is 33490519. The reversal of 33490506 is 60509433.

It is a happy number.

It is a super-2 number, since 2×33490506² = 2243227984272072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6355 + ... + 10361.

It is an arithmetic number, because the mean of its divisors is an integer number (2404800).

Almost surely, 2^33490506 is an apocalyptic number.

33490506 is an abundant number, since it is smaller than the sum of its proper divisors (43463094).

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

33490506 is a wasteful number, since it uses less digits than its factorization.

33490506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 33490506 is about 5787.0982365949. The cubic root of 33490506 is about 322.3348303912.

Adding to 33490506 its reverse (60509433), we get a palindrome (93999939).

The spelling of 33490506 in words is "thirty-three million, four hundred ninety thousand, five hundred six".