33090434 has 16 divisors (see below), whose sum is σ = 53609472. Its totient is φ = 15228048.

The previous prime is 33090413. The next prime is 33090437. The reversal of 33090434 is 43409033.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (33090437) 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, 8297 + ... + 11619.

It is an arithmetic number, because the mean of its divisors is an integer number (3350592).

Almost surely, 2^33090434 is an apocalyptic number.

33090434 is a deficient number, since it is larger than the sum of its proper divisors (20519038).

33090434 is a wasteful number, since it uses less digits than its factorization.

33090434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3721.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 33090434 is about 5752.4285306295. The cubic root of 33090434 is about 321.0461659193.

Adding to 33090434 its reverse (43409033), we get a palindrome (76499467).

The spelling of 33090434 in words is "thirty-three million, ninety thousand, four hundred thirty-four".