20280482 has 4 divisors (see below), whose sum is σ = 30420726. Its totient is φ = 10140240.

The previous prime is 20280461. The next prime is 20280493. The reversal of 20280482 is 28408202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28408202 = 2 ⋅14204101.

It can be written as a sum of positive squares in only one way, i.e., 14753281 + 5527201 = 3841^2 + 2351^2 .

It is a super-2 number, since 2×20280482² = 822595900304648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5070119 + ... + 5070122.

Almost surely, 2^20280482 is an apocalyptic number.

20280482 is a deficient number, since it is larger than the sum of its proper divisors (10140244).

20280482 is a wasteful number, since it uses less digits than its factorization.

20280482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10140243.

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 20280482 is about 4503.3856152899. The cubic root of 20280482 is about 272.7047844824.

Adding to 20280482 its reverse (28408202), we get a palindrome (48688684).

The spelling of 20280482 in words is "twenty million, two hundred eighty thousand, four hundred eighty-two".