33990006 has 16 divisors (see below), whose sum is σ = 68083200. Its totient is φ = 11312808.

The previous prime is 33989983. The next prime is 33990037. The reversal of 33990006 is 60009933.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375 + ... + 8253.

It is an arithmetic number, because the mean of its divisors is an integer number (4255200).

Almost surely, 2^33990006 is an apocalyptic number.

33990006 is an abundant number, since it is smaller than the sum of its proper divisors (34093194).

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

33990006 is a wasteful number, since it uses less digits than its factorization.

33990006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8603.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 33990006 is about 5830.0948534308. The cubic root of 33990006 is about 323.9294351737.

Adding to 33990006 its reverse (60009933), we get a palindrome (93999939).

The spelling of 33990006 in words is "thirty-three million, nine hundred ninety thousand, six".