20293732 has 12 divisors (see below), whose sum is σ = 35562240. Its totient is φ = 10133096.

The previous prime is 20293709. The next prime is 20293739. The reversal of 20293732 is 23739202.

It is a self number, because there is not a number n which added to its sum of digits gives 20293732.

It is not an unprimeable number, because it can be changed into a prime (20293739) 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, 333 + ... + 6379.

It is an arithmetic number, because the mean of its divisors is an integer number (2963520).

Almost surely, 2^20293732 is an apocalyptic number.

It is an amenable number.

20293732 is a deficient number, since it is larger than the sum of its proper divisors (15268508).

20293732 is a wasteful number, since it uses less digits than its factorization.

20293732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6890 (or 6888 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 20293732 is about 4504.8564905000. The cubic root of 20293732 is about 272.7641609767.

It can be divided in two parts, 20293 and 732, that added together give a square (21025 = 145²).

The spelling of 20293732 in words is "twenty million, two hundred ninety-three thousand, seven hundred thirty-two".