33042090 has 16 divisors (see below), whose sum is σ = 79301088. Its totient is φ = 8811216.

The previous prime is 33042089. The next prime is 33042109. The reversal of 33042090 is 9024033.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550672 + ... + 550731.

It is an arithmetic number, because the mean of its divisors is an integer number (4956318).

Almost surely, 2^33042090 is an apocalyptic number.

33042090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33042090 is an abundant number, since it is smaller than the sum of its proper divisors (46258998).

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

33042090 is a wasteful number, since it uses less digits than its factorization.

33042090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101413.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 33042090 is about 5748.2249434064. The cubic root of 33042090 is about 320.8897438713.

The spelling of 33042090 in words is "thirty-three million, forty-two thousand, ninety".