28069460 has 24 divisors (see below), whose sum is σ = 62049120. Its totient is φ = 10636704.

The previous prime is 28069451. The next prime is 28069471. The reversal of 28069460 is 6496082.

It is a self number, because there is not a number n which added to its sum of digits gives 28069460.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36554 + ... + 37313.

It is an arithmetic number, because the mean of its divisors is an integer number (2585380).

Almost surely, 2^28069460 is an apocalyptic number.

28069460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28069460 is an abundant number, since it is smaller than the sum of its proper divisors (33979660).

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

28069460 is a wasteful number, since it uses less digits than its factorization.

28069460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73895 (or 73893 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 28069460 is about 5298.0619097931. The cubic root of 28069460 is about 303.9097868280.

The spelling of 28069460 in words is "twenty-eight million, sixty-nine thousand, four hundred sixty".