33490 has 16 divisors (see below), whose sum is σ = 64152. Its totient is φ = 12544.

The previous prime is 33487. The next prime is 33493. The reversal of 33490 is 9433.

It is a Cunningham number, because it is equal to 183²+1.

It is an interprime number because it is at equal distance from previous prime (33487) and next prime (33493).

It can be written as a sum of positive squares in 4 ways, for example, as 33489 + 1 = 183^2 + 1^2 .

It is a super-2 number, since 2×33490² = 2243160200, which contains 22 as substring.

33490 is an undulating number in base 14.

It is not an unprimeable number, because it can be changed into a prime (33493) 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, 72 + ... + 268.

2³³⁴⁹⁰ is an apocalyptic number.

33490 is a deficient number, since it is larger than the sum of its proper divisors (30662).

33490 is a wasteful number, since it uses less digits than its factorization.

33490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 33490 is about 183.0027322200. The cubic root of 33490 is about 32.2333207023.

It can be divided in two parts, 334 and 90, that added together give a palindrome (424).

The spelling of 33490 in words is "thirty-three thousand, four hundred ninety".