20033434 has 4 divisors (see below), whose sum is σ = 30050154. Its totient is φ = 10016716.

The previous prime is 20033423. The next prime is 20033441. The reversal of 20033434 is 43433002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19316025 + 717409 = 4395^2 + 847^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5008357 + ... + 5008360.

Almost surely, 2^20033434 is an apocalyptic number.

20033434 is a deficient number, since it is larger than the sum of its proper divisors (10016720).

20033434 is a wasteful number, since it uses less digits than its factorization.

20033434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10016719.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 20033434 is about 4475.8724289238. The cubic root of 20033434 is about 271.5929338502.

Adding to 20033434 its reverse (43433002), we get a palindrome (63466436).

The spelling of 20033434 in words is "twenty million, thirty-three thousand, four hundred thirty-four".