20231434 has 4 divisors (see below), whose sum is σ = 30347154. Its totient is φ = 10115716.

The previous prime is 20231429. The next prime is 20231461. The reversal of 20231434 is 43413202.

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., 19775809 + 455625 = 4447^2 + 675^2 .

It is a super-3 number, since 3×20231434³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5057857 + ... + 5057860.

Almost surely, 2^20231434 is an apocalyptic number.

20231434 is a deficient number, since it is larger than the sum of its proper divisors (10115720).

20231434 is a wasteful number, since it uses less digits than its factorization.

20231434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10115719.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 20231434 is about 4497.9366380597. The cubic root of 20231434 is about 272.4847630568.

Adding to 20231434 its reverse (43413202), we get a palindrome (63644636).

The spelling of 20231434 in words is "twenty million, two hundred thirty-one thousand, four hundred thirty-four".