1920863826 has 48 divisors (see below), whose sum is σ = 4837060800. Its totient is φ = 539514144.

The previous prime is 1920863801. The next prime is 1920863827. The reversal of 1920863826 is 6283680291.

1920863826 is a `hidden beast` number, since 1 + 9 + 2 + 0 + 8 + 638 + 2 + 6 = 666.

1920863826 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1920863827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121761 + ... + 136628.

It is an arithmetic number, because the mean of its divisors is an integer number (100772100).

Almost surely, 2^1920863826 is an apocalyptic number.

1920863826 is an abundant number, since it is smaller than the sum of its proper divisors (2916196974).

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

1920863826 is a wasteful number, since it uses less digits than its factorization.

1920863826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258463 (or 258460 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1920863826 is about 43827.6605125120. The cubic root of 1920863826 is about 1243.0793708393.

The spelling of 1920863826 in words is "one billion, nine hundred twenty million, eight hundred sixty-three thousand, eight hundred twenty-six".