28619460 has 48 divisors (see below), whose sum is σ = 89040000. Its totient is φ = 7631712.

The previous prime is 28619447. The next prime is 28619471. The reversal of 28619460 is 6491682.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25960 + ... + 27039.

It is an arithmetic number, because the mean of its divisors is an integer number (1855000).

Almost surely, 2^28619460 is an apocalyptic number.

28619460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28619460 is an abundant number, since it is smaller than the sum of its proper divisors (60420540).

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

28619460 is a wasteful number, since it uses less digits than its factorization.

28619460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53017 (or 53009 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 28619460 is about 5349.7158803062. The cubic root of 28619460 is about 305.8819229168.

It can be divided in two parts, 2861 and 9460, that added together give a palindrome (12321).

The spelling of 28619460 in words is "twenty-eight million, six hundred nineteen thousand, four hundred sixty".