15430040345240 has 32 divisors (see below), whose sum is σ = 34717782984480. Its totient is φ = 6171981967872.

The previous prime is 15430040345231. The next prime is 15430040345311. The reversal of 15430040345240 is 4254304003451.

It is a super-2 number, since 2×15430040345240² (a number of 27 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 15430040345240.

It is a congruent number.

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, 7000064 + ... + 8936496.

It is an arithmetic number, because the mean of its divisors is an integer number (1084930718265).

Almost surely, 2^{15430040345240} is an apocalyptic number.

15430040345240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15430040345240 is an abundant number, since it is smaller than the sum of its proper divisors (19287742639240).

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

15430040345240 is a wasteful number, since it uses less digits than its factorization.

15430040345240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135651 (or 2135647 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 15430040345240 its reverse (4254304003451), we get a palindrome (19684344348691).

The spelling of 15430040345240 in words is "fifteen trillion, four hundred thirty billion, forty million, three hundred forty-five thousand, two hundred forty".