20275432 has 16 divisors (see below), whose sum is σ = 40017600. Its totient is φ = 9604080.

The previous prime is 20275421. The next prime is 20275433. The reversal of 20275432 is 23457202.

It is a super-2 number, since 2×20275432² = 822186285573248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20275397 and 20275406.

It is not an unprimeable number, because it can be changed into a prime (20275433) 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 3 ways as a sum of consecutive naturals, for example, 66544 + ... + 66847.

It is an arithmetic number, because the mean of its divisors is an integer number (2501100).

Almost surely, 2^20275432 is an apocalyptic number.

It is an amenable number.

20275432 is a deficient number, since it is larger than the sum of its proper divisors (19742168).

20275432 is a wasteful number, since it uses less digits than its factorization.

20275432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133416 (or 133412 counting only the distinct ones).

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

The square root of 20275432 is about 4502.8248911100. The cubic root of 20275432 is about 272.6821473892.

The spelling of 20275432 in words is "twenty million, two hundred seventy-five thousand, four hundred thirty-two".