33490356 has 24 divisors (see below), whose sum is σ = 79216704. Its totient is φ = 11010240.

The previous prime is 33490351. The next prime is 33490361. The reversal of 33490356 is 65309433.

It is an interprime number because it is at equal distance from previous prime (33490351) and next prime (33490361).

It is a super-2 number, since 2×33490356² = 2243207890013472, which contains 22 as substring.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33490351) 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, 18240 + ... + 19991.

It is an arithmetic number, because the mean of its divisors is an integer number (3300696).

Almost surely, 2^33490356 is an apocalyptic number.

It is an amenable number.

33490356 is an abundant number, since it is smaller than the sum of its proper divisors (45726348).

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

33490356 is a wasteful number, since it uses less digits than its factorization.

33490356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38311 (or 38309 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 33.

The square root of 33490356 is about 5787.0852767175. The cubic root of 33490356 is about 322.3343491574.

Adding to 33490356 its reverse (65309433), we get a palindrome (98799789).

The spelling of 33490356 in words is "thirty-three million, four hundred ninety thousand, three hundred fifty-six".