33148990 has 24 divisors (see below), whose sum is σ = 69410952. Its totient is φ = 11365200.

The previous prime is 33148979. The next prime is 33149021. The reversal of 33148990 is 9984133.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33336 + ... + 34315.

It is an arithmetic number, because the mean of its divisors is an integer number (2892123).

Almost surely, 2^33148990 is an apocalyptic number.

33148990 is an abundant number, since it is smaller than the sum of its proper divisors (36261962).

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

33148990 is a wasteful number, since it uses less digits than its factorization.

33148990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67672 (or 67665 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 33148990 is about 5757.5159574247. The cubic root of 33148990 is about 321.2354260675.

The spelling of 33148990 in words is "thirty-three million, one hundred forty-eight thousand, nine hundred ninety".