515240241402 has 32 divisors (see below), whose sum is σ = 1050317436672. Its totient is φ = 168471926784.

The previous prime is 515240241391. The next prime is 515240241403. The reversal of 515240241402 is 204142042515.

It is a self number, because there is not a number n which added to its sum of digits gives 515240241402.

It is not an unprimeable number, because it can be changed into a prime (515240241403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3851458 + ... + 3982989.

It is an arithmetic number, because the mean of its divisors is an integer number (32822419896).

Almost surely, 2^515240241402 is an apocalyptic number.

515240241402 is an abundant number, since it is smaller than the sum of its proper divisors (535077195270).

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

515240241402 is a wasteful number, since it uses less digits than its factorization.

515240241402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7834662.

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 515240241402 its reverse (204142042515), we get a palindrome (719382283917).

The spelling of 515240241402 in words is "five hundred fifteen billion, two hundred forty million, two hundred forty-one thousand, four hundred two".