33490782 has 48 divisors (see below), whose sum is σ = 82751760. Its totient is φ = 9697536.

The previous prime is 33490781. The next prime is 33490801. The reversal of 33490782 is 28709433.

It is a super-2 number, since 2×33490782² = 2243264957943048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33490781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 232 + ... + 8187.

It is an arithmetic number, because the mean of its divisors is an integer number (1723995).

Almost surely, 2^33490782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33490782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41375880).

33490782 is an abundant number, since it is smaller than the sum of its proper divisors (49260978).

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

33490782 is a wasteful number, since it uses less digits than its factorization.

33490782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8457 (or 8454 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 33490782 is about 5787.1220826936. The cubic root of 33490782 is about 322.3357158578.

The spelling of 33490782 in words is "thirty-three million, four hundred ninety thousand, seven hundred eighty-two".