28533074 has 8 divisors (see below), whose sum is σ = 42876540. Its totient is φ = 14240896.

The previous prime is 28533061. The next prime is 28533077. The reversal of 28533074 is 47033582.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26988025 + 1545049 = 5195^2 + 1243^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28533074.

It is not an unprimeable number, because it can be changed into a prime (28533077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11399 + ... + 13674.

Almost surely, 2^28533074 is an apocalyptic number.

28533074 is a deficient number, since it is larger than the sum of its proper divisors (14343466).

28533074 is a wasteful number, since it uses less digits than its factorization.

28533074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25644.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 28533074 is about 5341.6358917470. The cubic root of 28533074 is about 305.5738511041.

The spelling of 28533074 in words is "twenty-eight million, five hundred thirty-three thousand, seventy-four".