1302668440 has 32 divisors (see below), whose sum is σ = 2940396480. Its totient is φ = 519397632.

The previous prime is 1302668413. The next prime is 1302668461. The reversal of 1302668440 is 448662031.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1302668396 and 1302668405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39504 + ... + 64543.

It is an arithmetic number, because the mean of its divisors is an integer number (91887390).

Almost surely, 2^1302668440 is an apocalyptic number.

1302668440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1302668440 is an abundant number, since it is smaller than the sum of its proper divisors (1637728040).

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

1302668440 is a wasteful number, since it uses less digits than its factorization.

1302668440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104371 (or 104367 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 1302668440 is about 36092.4983895546. The cubic root of 1302668440 is about 1092.1391205079.

The spelling of 1302668440 in words is "one billion, three hundred two million, six hundred sixty-eight thousand, four hundred forty".