33198738 has 16 divisors (see below), whose sum is σ = 69892320. Its totient is φ = 10483776.

The previous prime is 33198703. The next prime is 33198743. The reversal of 33198738 is 83789133.

It is a super-2 number, since 2×33198738² = 2204312409585288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33198738.

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, 145495 + ... + 145722.

It is an arithmetic number, because the mean of its divisors is an integer number (4368270).

Almost surely, 2^33198738 is an apocalyptic number.

33198738 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

33198738 is an abundant number, since it is smaller than the sum of its proper divisors (36693582).

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

33198738 is a wasteful number, since it uses less digits than its factorization.

33198738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291241.

The product of its digits is 108864, while the sum is 42.

The square root of 33198738 is about 5761.8346036657. The cubic root of 33198738 is about 321.3960426482.

The spelling of 33198738 in words is "thirty-three million, one hundred ninety-eight thousand, seven hundred thirty-eight".