20064434 has 16 divisors (see below), whose sum is σ = 33289368. Its totient is φ = 9009792.

The previous prime is 20064431. The next prime is 20064449. The reversal of 20064434 is 43446002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20025625 + 38809 = 4475^2 + 197^2 .

It is not an unprimeable number, because it can be changed into a prime (20064431) 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, 9467 + ... + 11390.

Almost surely, 2^20064434 is an apocalyptic number.

20064434 is a deficient number, since it is larger than the sum of its proper divisors (13224934).

20064434 is a wasteful number, since it uses less digits than its factorization.

20064434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20909.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 20064434 is about 4479.3341022969. The cubic root of 20064434 is about 271.7329504832.

The spelling of 20064434 in words is "twenty million, sixty-four thousand, four hundred thirty-four".