2129826742 has 16 divisors (see below), whose sum is σ = 3383530272. Its totient is φ = 1002015360.

The previous prime is 2129826731. The next prime is 2129826779. The reversal of 2129826742 is 2476289212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227392 + ... + 236572.

It is an arithmetic number, because the mean of its divisors is an integer number (211470642).

Almost surely, 2^2129826742 is an apocalyptic number.

2129826742 is a deficient number, since it is larger than the sum of its proper divisors (1253703530).

2129826742 is a wasteful number, since it uses less digits than its factorization.

2129826742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16023.

The product of its digits is 193536, while the sum is 43.

The square root of 2129826742 is about 46150.0459588070. The cubic root of 2129826742 is about 1286.6134641870.

The spelling of 2129826742 in words is "two billion, one hundred twenty-nine million, eight hundred twenty-six thousand, seven hundred forty-two".