28463490 has 48 divisors (see below), whose sum is σ = 80735616. Its totient is φ = 6900000.

The previous prime is 28463483. The next prime is 28463507. The reversal of 28463490 is 9436482.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13386 + ... + 15365.

It is an arithmetic number, because the mean of its divisors is an integer number (1681992).

Almost surely, 2^28463490 is an apocalyptic number.

28463490 is an abundant number, since it is smaller than the sum of its proper divisors (52272126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28463490 is a wasteful number, since it uses less digits than its factorization.

28463490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28775 (or 28772 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 28463490 is about 5335.1185553838. The cubic root of 28463490 is about 305.3252465181.

It can be divided in two parts, 2846 and 3490, that added together give a palindrome (6336).

The spelling of 28463490 in words is "twenty-eight million, four hundred sixty-three thousand, four hundred ninety".