28343061040 has 160 divisors (see below), whose sum is σ = 76469927040. Its totient is φ = 9569083392.

The previous prime is 28343061031. The next prime is 28343061077. The reversal of 28343061040 is 4016034382.

It is a super-4 number, since 4×28343061040⁴ (a number of 43 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28343060993 and 28343061011.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13804654 + ... + 13806706.

It is an arithmetic number, because the mean of its divisors is an integer number (477937044).

Almost surely, 2^28343061040 is an apocalyptic number.

28343061040 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 28343061040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38234963520).

28343061040 is an abundant number, since it is smaller than the sum of its proper divisors (48126866000).

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

28343061040 is a wasteful number, since it uses less digits than its factorization.

28343061040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439 (or 2433 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 28343061040 in words is "twenty-eight billion, three hundred forty-three million, sixty-one thousand, forty".