20234136 has 32 divisors (see below), whose sum is σ = 54477360. Its totient is φ = 6225792.

The previous prime is 20234117. The next prime is 20234143. The reversal of 20234136 is 63143202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32115 + ... + 32738.

Almost surely, 2^20234136 is an apocalyptic number.

20234136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20234136 is an abundant number, since it is smaller than the sum of its proper divisors (34243224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20234136 is a wasteful number, since it uses less digits than its factorization.

20234136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64875 (or 64871 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 20234136 is about 4498.2369879765. The cubic root of 20234136 is about 272.4968930432.

Adding to 20234136 its reverse (63143202), we get a palindrome (83377338).

The spelling of 20234136 in words is "twenty million, two hundred thirty-four thousand, one hundred thirty-six".