33021898 has 16 divisors (see below), whose sum is σ = 60963840. Its totient is φ = 13063536.

The previous prime is 33021889. The next prime is 33021931. The reversal of 33021898 is 89812033.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90538 + ... + 90901.

It is an arithmetic number, because the mean of its divisors is an integer number (3810240).

Almost surely, 2^33021898 is an apocalyptic number.

33021898 is a deficient number, since it is larger than the sum of its proper divisors (27941942).

33021898 is a wasteful number, since it uses less digits than its factorization.

33021898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181461.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 33021898 is about 5746.4683067080. The cubic root of 33021898 is about 320.8243653797.

The spelling of 33021898 in words is "thirty-three million, twenty-one thousand, eight hundred ninety-eight".