28402420482 has 48 divisors (see below), whose sum is σ = 63313316352. Its totient is φ = 9195340320.

The previous prime is 28402420477. The next prime is 28402420499.

It is a happy number.

28402420482 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×28402420482² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 342943 + ... + 417629.

It is an arithmetic number, because the mean of its divisors is an integer number (1319027424).

Almost surely, 2^28402420482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28402420482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31656658176).

28402420482 is an abundant number, since it is smaller than the sum of its proper divisors (34910895870).

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

28402420482 is a wasteful number, since it uses less digits than its factorization.

28402420482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75303 (or 75300 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 36.

The spelling of 28402420482 in words is "twenty-eight billion, four hundred two million, four hundred twenty thousand, four hundred eighty-two".