28744303171430 has 96 divisors (see below), whose sum is σ = 65692627402752. Its totient is φ = 8954620382400.

The previous prime is 28744303171319. The next prime is 28744303171439. The reversal of 28744303171430 is 3417130344782.

It is a super-2 number, since 2×28744303171430² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28744303171439) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9027227 + ... + 11788953.

It is an arithmetic number, because the mean of its divisors is an integer number (684298202112).

Almost surely, 2^{28744303171430} is an apocalyptic number.

28744303171430 is an abundant number, since it is smaller than the sum of its proper divisors (36948324231322).

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

28744303171430 is a wasteful number, since it uses less digits than its factorization.

28744303171430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763690 (or 2763683 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 47.

The spelling of 28744303171430 in words is "twenty-eight trillion, seven hundred forty-four billion, three hundred three million, one hundred seventy-one thousand, four hundred thirty".