28480502 has 4 divisors (see below), whose sum is σ = 42720756. Its totient is φ = 14240250.

The previous prime is 28480493. The next prime is 28480513. The reversal of 28480502 is 20508482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20508482 = 2 ⋅10254241.

It is a super-2 number, since 2×28480502² = 1622277988344008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7120124 + ... + 7120127.

It is an arithmetic number, because the mean of its divisors is an integer number (10680189).

Almost surely, 2^28480502 is an apocalyptic number.

28480502 is a deficient number, since it is larger than the sum of its proper divisors (14240254).

28480502 is a wasteful number, since it uses less digits than its factorization.

28480502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14240253.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 28480502 is about 5336.7126585568. The cubic root of 28480502 is about 305.3860631247.

Adding to 28480502 its reverse (20508482), we get a palindrome (48988984).

It can be divided in two parts, 28480 and 502, that added together give a palindrome (28982).

The spelling of 28480502 in words is "twenty-eight million, four hundred eighty thousand, five hundred two".