28369450 has 12 divisors (see below), whose sum is σ = 52767270. Its totient is φ = 11347760.

The previous prime is 28369423. The next prime is 28369457. The reversal of 28369450 is 5496382.

It can be written as a sum of positive squares in 3 ways, for example, as 18653761 + 9715689 = 4319^2 + 3117^2 .

It is not an unprimeable number, because it can be changed into a prime (28369457) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 283645 + ... + 283744.

Almost surely, 2^28369450 is an apocalyptic number.

28369450 is a deficient number, since it is larger than the sum of its proper divisors (24397820).

28369450 is a wasteful number, since it uses less digits than its factorization.

28369450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567401 (or 567396 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 28369450 is about 5326.2979638770. The cubic root of 28369450 is about 304.9886227056.

The spelling of 28369450 in words is "twenty-eight million, three hundred sixty-nine thousand, four hundred fifty".