2635434642 has 16 divisors (see below), whose sum is σ = 5274417600. Its totient is φ = 877886832.

The previous prime is 2635434629. The next prime is 2635434649. The reversal of 2635434642 is 2464345362.

It is a self number, because there is not a number n which added to its sum of digits gives 2635434642.

It is not an unprimeable number, because it can be changed into a prime (2635434649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138142 + ... + 156057.

It is an arithmetic number, because the mean of its divisors is an integer number (329651100).

Almost surely, 2^2635434642 is an apocalyptic number.

2635434642 is an abundant number, since it is smaller than the sum of its proper divisors (2638982958).

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

2635434642 is a wasteful number, since it uses less digits than its factorization.

2635434642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295697.

The product of its digits is 414720, while the sum is 39.

The square root of 2635434642 is about 51336.4845115051. The cubic root of 2635434642 is about 1381.2875056201.

The spelling of 2635434642 in words is "two billion, six hundred thirty-five million, four hundred thirty-four thousand, six hundred forty-two".