33426890 has 64 divisors (see below), whose sum is σ = 74269440. Its totient is φ = 10575360.

The previous prime is 33426881. The next prime is 33426893. The reversal of 33426890 is 9862433.

It is a happy number.

It is a super-2 number, since 2×33426890² = 2234713950144200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 33426890.

It is not an unprimeable number, because it can be changed into a prime (33426893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54224 + ... + 54836.

It is an arithmetic number, because the mean of its divisors is an integer number (1160460).

Almost surely, 2^33426890 is an apocalyptic number.

33426890 is an abundant number, since it is smaller than the sum of its proper divisors (40842550).

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

33426890 is a wasteful number, since it uses less digits than its factorization.

33426890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 33426890 is about 5781.5992597204. The cubic root of 33426890 is about 322.1306068426.

The spelling of 33426890 in words is "thirty-three million, four hundred twenty-six thousand, eight hundred ninety".