28940183700 has 72 divisors (see below), whose sum is σ = 83887151712. Its totient is φ = 7703230080.

The previous prime is 28940183693. The next prime is 28940183707. The reversal of 28940183700 is 738104982.

It is an interprime number because it is at equal distance from previous prime (28940183693) and next prime (28940183707).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28940183707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75922 + ... + 252278.

Almost surely, 2^28940183700 is an apocalyptic number.

28940183700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28940183700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41943575856).

28940183700 is an abundant number, since it is smaller than the sum of its proper divisors (54946968012).

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

28940183700 is a wasteful number, since it uses less digits than its factorization.

28940183700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176921 (or 176914 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 28940183700 in words is "twenty-eight billion, nine hundred forty million, one hundred eighty-three thousand, seven hundred".