20532274 has 24 divisors (see below), whose sum is σ = 37715760. Its totient is φ = 8335656.

The previous prime is 20532271. The next prime is 20532289. The reversal of 20532274 is 47223502.

It is a super-2 number, since 2×20532274² = 843148551222152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20532271) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 3652 + ... + 7375.

It is an arithmetic number, because the mean of its divisors is an integer number (1571490).

Almost surely, 2^20532274 is an apocalyptic number.

20532274 is a deficient number, since it is larger than the sum of its proper divisors (17183486).

20532274 is a wasteful number, since it uses less digits than its factorization.

20532274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11062 (or 11055 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 20532274 is about 4531.2552344797. The cubic root of 20532274 is about 273.8287330786.

Adding to 20532274 its reverse (47223502), we get a palindrome (67755776).

It can be divided in two parts, 205322 and 74, that multiplied together give a triangular number (15193828 = T₅₅₁₂).

The spelling of 20532274 in words is "twenty million, five hundred thirty-two thousand, two hundred seventy-four".