33990346 has 32 divisors (see below), whose sum is σ = 57168720. Its totient is φ = 15054336.

The previous prime is 33990337. The next prime is 33990347. The reversal of 33990346 is 64309933.

It can be written as a sum of positive squares in 8 ways, for example, as 15405625 + 18584721 = 3925^2 + 4311^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (33990347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85420 + ... + 85816.

Almost surely, 2^33990346 is an apocalyptic number.

33990346 is a deficient number, since it is larger than the sum of its proper divisors (23178374).

33990346 is a wasteful number, since it uses less digits than its factorization.

33990346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538.

The product of its (nonzero) digits is 52488, while the sum is 37.

The square root of 33990346 is about 5830.1240124032. The cubic root of 33990346 is about 323.9305152524.

The spelling of 33990346 in words is "thirty-three million, nine hundred ninety thousand, three hundred forty-six".