28419250 has 64 divisors (see below), whose sum is σ = 58106880. Its totient is φ = 10368000.

The previous prime is 28419247. The next prime is 28419253. The reversal of 28419250 is 5291482.

It is an interprime number because it is at equal distance from previous prime (28419247) and next prime (28419253).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28419253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147154 + ... + 147346.

It is an arithmetic number, because the mean of its divisors is an integer number (907920).

Almost surely, 2^28419250 is an apocalyptic number.

28419250 is an abundant number, since it is smaller than the sum of its proper divisors (29687630).

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

28419250 is a wasteful number, since it uses less digits than its factorization.

28419250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 28419250 is about 5330.9708309088. The cubic root of 28419250 is about 305.1669783518.

The spelling of 28419250 in words is "twenty-eight million, four hundred nineteen thousand, two hundred fifty".