2649908442 has 16 divisors (see below), whose sum is σ = 5386699872. Its totient is φ = 868822320.

The previous prime is 2649908423. The next prime is 2649908447. The reversal of 2649908442 is 2448099462.

It is a junction number, because it is equal to n+sod(n) for n = 2649908391 and 2649908400.

It is not an unprimeable number, because it can be changed into a prime (2649908447) 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, 3619728 + ... + 3620459.

It is an arithmetic number, because the mean of its divisors is an integer number (336668742).

Almost surely, 2^2649908442 is an apocalyptic number.

2649908442 is an abundant number, since it is smaller than the sum of its proper divisors (2736791430).

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

2649908442 is a wasteful number, since it uses less digits than its factorization.

2649908442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7240253.

The product of its (nonzero) digits is 995328, while the sum is 48.

The square root of 2649908442 is about 51477.2614073437. The cubic root of 2649908442 is about 1383.8115662938.

The spelling of 2649908442 in words is "two billion, six hundred forty-nine million, nine hundred eight thousand, four hundred forty-two".