10628286440 has 32 divisors (see below), whose sum is σ = 25320331080. Its totient is φ = 4001236992.

The previous prime is 10628286433. The next prime is 10628286451. The reversal of 10628286440 is 4468282601.

It can be written as a sum of positive squares in 4 ways, for example, as 10357947076 + 270339364 = 101774^2 + 16442^2 .

It is a super-2 number, since 2×10628286440² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7814237 + ... + 7815596.

Almost surely, 2^10628286440 is an apocalyptic number.

10628286440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10628286440 is an abundant number, since it is smaller than the sum of its proper divisors (14692044640).

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

10628286440 is a wasteful number, since it uses less digits than its factorization.

10628286440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15629861 (or 15629857 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The spelling of 10628286440 in words is "ten billion, six hundred twenty-eight million, two hundred eighty-six thousand, four hundred forty".