28440488102 has 16 divisors (see below), whose sum is σ = 45958640112. Its totient is φ = 13121718240.

The previous prime is 28440488101. The next prime is 28440488107. The reversal of 28440488102 is 20188404482.

It is a super-2 number, since 2×28440488102² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28440488102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28440488101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119024 + ... + 266547.

It is an arithmetic number, because the mean of its divisors is an integer number (2872415007).

Almost surely, 2^28440488102 is an apocalyptic number.

28440488102 is a deficient number, since it is larger than the sum of its proper divisors (17518152010).

28440488102 is a wasteful number, since it uses less digits than its factorization.

28440488102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388423.

The product of its (nonzero) digits is 131072, while the sum is 41.

The spelling of 28440488102 in words is "twenty-eight billion, four hundred forty million, four hundred eighty-eight thousand, one hundred two".