15342355540 has 12 divisors (see below), whose sum is σ = 32218946676. Its totient is φ = 6136942208.

The previous prime is 15342355493. The next prime is 15342355541. The reversal of 15342355540 is 4555324351.

It can be written as a sum of positive squares in 2 ways, for example, as 6983276356 + 8359079184 = 83566^2 + 91428^2 .

It is a super-3 number, since 3×15342355540³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15342355540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15342355541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383558869 + ... + 383558908.

It is an arithmetic number, because the mean of its divisors is an integer number (2684912223).

Almost surely, 2^15342355540 is an apocalyptic number.

15342355540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15342355540 is an abundant number, since it is smaller than the sum of its proper divisors (16876591136).

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

15342355540 is a wasteful number, since it uses less digits than its factorization.

15342355540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767117786 (or 767117784 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 37.

Adding to 15342355540 its reverse (4555324351), we get a palindrome (19897679891).

The spelling of 15342355540 in words is "fifteen billion, three hundred forty-two million, three hundred fifty-five thousand, five hundred forty".