28426450 has 48 divisors (see below), whose sum is σ = 57636936. Its totient is φ = 10368000.

The previous prime is 28426441. The next prime is 28426477. The reversal of 28426450 is 5462482.

It can be written as a sum of positive squares in 12 ways, for example, as 452929 + 27973521 = 673^2 + 5289^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65434 + ... + 65866.

Almost surely, 2^28426450 is an apocalyptic number.

28426450 is an abundant number, since it is smaller than the sum of its proper divisors (29210486).

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

28426450 is a wasteful number, since it uses less digits than its factorization.

28426450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 28426450 is about 5331.6460872792. The cubic root of 28426450 is about 305.1927474662.

The spelling of 28426450 in words is "twenty-eight million, four hundred twenty-six thousand, four hundred fifty".