20903482 has 4 divisors (see below), whose sum is σ = 31355226. Its totient is φ = 10451740.

The previous prime is 20903459. The next prime is 20903497. The reversal of 20903482 is 28430902.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17297281 + 3606201 = 4159^2 + 1899^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20903482.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5225869 + ... + 5225872.

Almost surely, 2^20903482 is an apocalyptic number.

20903482 is a deficient number, since it is larger than the sum of its proper divisors (10451744).

20903482 is a wasteful number, since it uses less digits than its factorization.

20903482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10451743.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 20903482 is about 4572.0325895601. The cubic root of 20903482 is about 275.4690924843.

The spelling of 20903482 in words is "twenty million, nine hundred three thousand, four hundred eighty-two".