33406998 has 16 divisors (see below), whose sum is σ = 67032576. Its totient is φ = 11099240.

The previous prime is 33406979. The next prime is 33407009. The reversal of 33406998 is 89960433.

It is a super-2 number, since 2×33406998² = 2232055030744008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7086 + ... + 10817.

It is an arithmetic number, because the mean of its divisors is an integer number (4189536).

Almost surely, 2^33406998 is an apocalyptic number.

33406998 is an abundant number, since it is smaller than the sum of its proper divisors (33625578).

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

33406998 is a wasteful number, since it uses less digits than its factorization.

33406998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18219.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 33406998 is about 5779.8787184508. The cubic root of 33406998 is about 322.0666952879.

The spelling of 33406998 in words is "thirty-three million, four hundred six thousand, nine hundred ninety-eight".