10402442440 has 64 divisors (see below), whose sum is σ = 25223612400. Its totient is φ = 3838205952.

The previous prime is 10402442431. The next prime is 10402442467. The reversal of 10402442440 is 4424420401.

It can be written as a sum of positive squares in 8 ways, for example, as 3603120676 + 6799321764 = 60026^2 + 82458^2 .

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 15 ways as a sum of consecutive naturals, for example, 830464 + ... + 842896.

Almost surely, 2^10402442440 is an apocalyptic number.

10402442440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10402442440 is an abundant number, since it is smaller than the sum of its proper divisors (14821169960).

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

10402442440 is a wasteful number, since it uses less digits than its factorization.

10402442440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14066 (or 14062 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 10402442440 its reverse (4424420401), we get a palindrome (14826862841).

The spelling of 10402442440 in words is "ten billion, four hundred two million, four hundred forty-two thousand, four hundred forty".