28574734 has 4 divisors (see below), whose sum is σ = 42862104. Its totient is φ = 14287366.

The previous prime is 28574723. The next prime is 28574737. The reversal of 28574734 is 43747582.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28574737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7143682 + ... + 7143685.

It is an arithmetic number, because the mean of its divisors is an integer number (10715526).

Almost surely, 2^28574734 is an apocalyptic number.

28574734 is a deficient number, since it is larger than the sum of its proper divisors (14287370).

28574734 is a wasteful number, since it uses less digits than its factorization.

28574734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14287369.

The product of its digits is 188160, while the sum is 40.

The square root of 28574734 is about 5345.5340238371. The cubic root of 28574734 is about 305.7224975022.

The spelling of 28574734 in words is "twenty-eight million, five hundred seventy-four thousand, seven hundred thirty-four".