20535274 has 16 divisors (see below), whose sum is σ = 32752512. Its totient is φ = 9634768.

The previous prime is 20535271. The next prime is 20535283. The reversal of 20535274 is 47253502.

It is not an unprimeable number, because it can be changed into a prime (20535271) 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, 1774 + ... + 6649.

It is an arithmetic number, because the mean of its divisors is an integer number (2047032).

Almost surely, 2^20535274 is an apocalyptic number.

20535274 is a deficient number, since it is larger than the sum of its proper divisors (12217238).

20535274 is a wasteful number, since it uses less digits than its factorization.

20535274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8501.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 20535274 is about 4531.5862564890. The cubic root of 20535274 is about 273.8420689321.

Adding to 20535274 its reverse (47253502), we get a palindrome (67788776).

The spelling of 20535274 in words is "twenty million, five hundred thirty-five thousand, two hundred seventy-four".