28260474 has 32 divisors (see below), whose sum is σ = 61884864. Its totient is φ = 8532480.

The previous prime is 28260473. The next prime is 28260481. The reversal of 28260474 is 47406282.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (28260473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22692 + ... + 23904.

It is an arithmetic number, because the mean of its divisors is an integer number (1933902).

Almost surely, 2^28260474 is an apocalyptic number.

28260474 is an abundant number, since it is smaller than the sum of its proper divisors (33624390).

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

28260474 is a wasteful number, since it uses less digits than its factorization.

28260474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 28260474 is about 5316.0581260931. The cubic root of 28260474 is about 304.5976024542.

The spelling of 28260474 in words is "twenty-eight million, two hundred sixty thousand, four hundred seventy-four".