28340230854 has 32 divisors (see below), whose sum is σ = 61077350880. Its totient is φ = 8714806272.

The previous prime is 28340230847. The next prime is 28340230859. The reversal of 28340230854 is 45803204382.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28340230859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21334 + ... + 239030.

It is an arithmetic number, because the mean of its divisors is an integer number (1908667215).

Almost surely, 2^28340230854 is an apocalyptic number.

28340230854 is an abundant number, since it is smaller than the sum of its proper divisors (32737120026).

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

28340230854 is a wasteful number, since it uses less digits than its factorization.

28340230854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219384.

The product of its (nonzero) digits is 184320, while the sum is 39.

The spelling of 28340230854 in words is "twenty-eight billion, three hundred forty million, two hundred thirty thousand, eight hundred fifty-four".