10340521540 has 48 divisors (see below), whose sum is σ = 22428061488. Its totient is φ = 4002545664.

The previous prime is 10340521537. The next prime is 10340521649. The reversal of 10340521540 is 4512504301.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 15116544 + 10325404996 = 3888^2 + 101614^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10564 + ... + 144196.

It is an arithmetic number, because the mean of its divisors is an integer number (467251281).

Almost surely, 2^10340521540 is an apocalyptic number.

10340521540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10340521540 is an abundant number, since it is smaller than the sum of its proper divisors (12087539948).

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

10340521540 is a wasteful number, since it uses less digits than its factorization.

10340521540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133768 (or 133766 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 10340521540 in words is "ten billion, three hundred forty million, five hundred twenty-one thousand, five hundred forty".