28484426 has 8 divisors (see below), whose sum is σ = 43532964. Its totient is φ = 13973440.

The previous prime is 28484411. The next prime is 28484429. The reversal of 28484426 is 62448482.

It can be written as a sum of positive squares in 2 ways, for example, as 28462225 + 22201 = 5335^2 + 149^2 .

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

It is a super-3 number, since 3×28484426³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 28484426.

It is not an unprimeable number, because it can be changed into a prime (28484429) 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, 134255 + ... + 134466.

Almost surely, 2^28484426 is an apocalyptic number.

28484426 is a deficient number, since it is larger than the sum of its proper divisors (15048538).

28484426 is a wasteful number, since it uses less digits than its factorization.

28484426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268776.

The product of its digits is 98304, while the sum is 38.

The square root of 28484426 is about 5337.0802879477. The cubic root of 28484426 is about 305.4000876888.

The spelling of 28484426 in words is "twenty-eight million, four hundred eighty-four thousand, four hundred twenty-six".