2038892778 has 24 divisors (see below), whose sum is σ = 4757417028. Its totient is φ = 627351552.

The previous prime is 2038892771. The next prime is 2038892783. The reversal of 2038892778 is 8772988302.

It can be written as a sum of positive squares in 2 ways, for example, as 1585074969 + 453817809 = 39813^2 + 21303^2 .

It is not an unprimeable number, because it can be changed into a prime (2038892771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4356375 + ... + 4356842.

Almost surely, 2^2038892778 is an apocalyptic number.

2038892778 is an abundant number, since it is smaller than the sum of its proper divisors (2718524250).

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

2038892778 is a wasteful number, since it uses less digits than its factorization.

2038892778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8713238 (or 8713235 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The square root of 2038892778 is about 45154.1003453728. The cubic root of 2038892778 is about 1268.0356467636.

The spelling of 2038892778 in words is "two billion, thirty-eight million, eight hundred ninety-two thousand, seven hundred seventy-eight".