245040315402 has 32 divisors (see below), whose sum is σ = 492236035200. Its totient is φ = 81321491520.

The previous prime is 245040315389. The next prime is 245040315409. The reversal of 245040315402 is 204513040542.

It is a self number, because there is not a number n which added to its sum of digits gives 245040315402.

It is not an unprimeable number, because it can be changed into a prime (245040315409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1514724 + ... + 1668672.

It is an arithmetic number, because the mean of its divisors is an integer number (15382376100).

Almost surely, 2^245040315402 is an apocalyptic number.

245040315402 is an abundant number, since it is smaller than the sum of its proper divisors (247195719798).

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

245040315402 is a wasteful number, since it uses less digits than its factorization.

245040315402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155118.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 245040315402 its reverse (204513040542), we get a palindrome (449553355944).

The spelling of 245040315402 in words is "two hundred forty-five billion, forty million, three hundred fifteen thousand, four hundred two".