28041894 has 12 divisors (see below), whose sum is σ = 60757476. Its totient is φ = 9347292.

The previous prime is 28041889. The next prime is 28041907. The reversal of 28041894 is 49814082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 778924 + ... + 778959.

It is an arithmetic number, because the mean of its divisors is an integer number (5063123).

Almost surely, 2^28041894 is an apocalyptic number.

28041894 is an abundant number, since it is smaller than the sum of its proper divisors (32715582).

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

28041894 is a wasteful number, since it uses less digits than its factorization.

28041894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557891 (or 1557888 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 28041894 is about 5295.4597534114. The cubic root of 28041894 is about 303.8102679783.

The spelling of 28041894 in words is "twenty-eight million, forty-one thousand, eight hundred ninety-four".