28340200320 has 128 divisors (see below), whose sum is σ = 92776091040. Its totient is φ = 7353114624.

The previous prime is 28340200303. The next prime is 28340200337. The reversal of 28340200320 is 2300204382.

It is an interprime number because it is at equal distance from previous prime (28340200303) and next prime (28340200337).

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128427 + ... + 270506.

Almost surely, 2^28340200320 is an apocalyptic number.

28340200320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28340200320 is an abundant number, since it is smaller than the sum of its proper divisors (64435890720).

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

28340200320 is a wasteful number, since it uses less digits than its factorization.

28340200320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398992 (or 398980 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The spelling of 28340200320 in words is "twenty-eight billion, three hundred forty million, two hundred thousand, three hundred twenty".