28076436 has 24 divisors (see below), whose sum is σ = 72791040. Its totient is φ = 9358776.

The previous prime is 28076423. The next prime is 28076449. The reversal of 28076436 is 63467082.

28076436 is a `hidden beast` number, since 2 + 8 + 0 + 7 + 643 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (28076423) and next prime (28076449).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28076436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129876 + ... + 130091.

It is an arithmetic number, because the mean of its divisors is an integer number (3032960).

Almost surely, 2^28076436 is an apocalyptic number.

It is an amenable number.

28076436 is an abundant number, since it is smaller than the sum of its proper divisors (44714604).

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

28076436 is a wasteful number, since it uses less digits than its factorization.

28076436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259980 (or 259972 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 28076436 is about 5298.7202228463. The cubic root of 28076436 is about 303.9349612711.

The spelling of 28076436 in words is "twenty-eight million, seventy-six thousand, four hundred thirty-six".