33190989 has 8 divisors (see below), whose sum is σ = 47658912. Its totient is φ = 20425200.

The previous prime is 33190979. The next prime is 33190999. The reversal of 33190989 is 98909133.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (33190979) and next prime (33190999).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33190989 - 2¹⁵ = 33158221 is a prime.

It is a super-2 number, since 2×33190989² = 2203283501596242, 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 33190989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33190939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425487 + ... + 425564.

It is an arithmetic number, because the mean of its divisors is an integer number (5957364).

Almost surely, 2^33190989 is an apocalyptic number.

33190989 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

33190989 is a deficient number, since it is larger than the sum of its proper divisors (14467923).

33190989 is a wasteful number, since it uses less digits than its factorization.

33190989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851067.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 33190989 is about 5761.1621223500. The cubic root of 33190989 is about 321.3710347525.

The spelling of 33190989 in words is "thirty-three million, one hundred ninety thousand, nine hundred eighty-nine".