28346233500 has 480 divisors, whose sum is σ = 105485732352. Its totient is φ = 6565017600.

The previous prime is 28346233493. The next prime is 28346233507. The reversal of 28346233500 is 533264382.

It is a happy number.

28346233500 is a `hidden beast` number, since 2 + 83 + 46 + 2 + 33 + 500 = 666.

It is an interprime number because it is at equal distance from previous prime (28346233493) and next prime (28346233507).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28346233507) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 8948917 + ... + 8952083.

Almost surely, 2^28346233500 is an apocalyptic number.

28346233500 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 28346233500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52742866176).

28346233500 is an abundant number, since it is smaller than the sum of its proper divisors (77139498852).

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

28346233500 is a wasteful number, since it uses less digits than its factorization.

28346233500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3228 (or 3207 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 28346233500 its reverse (533264382), we get a palindrome (28879497882).

The spelling of 28346233500 in words is "twenty-eight billion, three hundred forty-six million, two hundred thirty-three thousand, five hundred".