28363760 has 40 divisors (see below), whose sum is σ = 68078976. Its totient is φ = 10978560.

The previous prime is 28363757. The next prime is 28363763. The reversal of 28363760 is 6736382.

It is an interprime number because it is at equal distance from previous prime (28363757) and next prime (28363763).

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 28363760.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28363763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3239 + ... + 8198.

Almost surely, 2^28363760 is an apocalyptic number.

28363760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28363760 is an abundant number, since it is smaller than the sum of its proper divisors (39715216).

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

28363760 is a wasteful number, since it uses less digits than its factorization.

28363760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11481 (or 11475 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 28363760 is about 5325.7637949875. The cubic root of 28363760 is about 304.9682310366.

The spelling of 28363760 in words is "twenty-eight million, three hundred sixty-three thousand, seven hundred sixty".