28468436 has 6 divisors (see below), whose sum is σ = 49819770. Its totient is φ = 14234216.

The previous prime is 28468423. The next prime is 28468469. The reversal of 28468436 is 63486482.

It can be written as a sum of positive squares in only one way, i.e., 28408900 + 59536 = 5330^2 + 244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28468393 and 28468402.

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, 3558551 + ... + 3558558.

It is an arithmetic number, because the mean of its divisors is an integer number (8303295).

Almost surely, 2^28468436 is an apocalyptic number.

It is an amenable number.

28468436 is a deficient number, since it is larger than the sum of its proper divisors (21351334).

28468436 is a wasteful number, since it uses less digits than its factorization.

28468436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7117113 (or 7117111 counting only the distinct ones).

The product of its digits is 221184, while the sum is 41.

The square root of 28468436 is about 5335.5820675911. The cubic root of 28468436 is about 305.3429305900.

The spelling of 28468436 in words is "twenty-eight million, four hundred sixty-eight thousand, four hundred thirty-six".