2042778832 has 10 divisors (see below), whose sum is σ = 3957884018. Its totient is φ = 1021389408.

The previous prime is 2042778823. The next prime is 2042778839. The reversal of 2042778832 is 2388772402.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1409551936 + 633226896 = 37544^2 + 25164^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042778839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63836823 + ... + 63836854.

Almost surely, 2^2042778832 is an apocalyptic number.

It is an amenable number.

2042778832 is a deficient number, since it is larger than the sum of its proper divisors (1915105186).

2042778832 is a wasteful number, since it uses less digits than its factorization.

2042778832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127673685 (or 127673679 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 43.

The square root of 2042778832 is about 45197.1108811172. The cubic root of 2042778832 is about 1268.8407451187.

The spelling of 2042778832 in words is "two billion, forty-two million, seven hundred seventy-eight thousand, eight hundred thirty-two".