20534267 has 8 divisors (see below), whose sum is σ = 22531824. Its totient is φ = 18596448.

The previous prime is 20534257. The next prime is 20534273. The reversal of 20534267 is 76243502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-20534267 is a prime.

It is a super-2 number, since 2×20534267² = 843312242454578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20534207) 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, 14213 + ... + 15590.

It is an arithmetic number, because the mean of its divisors is an integer number (2816478).

Almost surely, 2^20534267 is an apocalyptic number.

20534267 is a deficient number, since it is larger than the sum of its proper divisors (1997557).

20534267 is a wasteful number, since it uses less digits than its factorization.

20534267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29869.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 20534267 is about 4531.4751461307. The cubic root of 20534267 is about 273.8375926754.

Adding to 20534267 its reverse (76243502), we get a palindrome (96777769).

The spelling of 20534267 in words is "twenty million, five hundred thirty-four thousand, two hundred sixty-seven".