1926749856 has 48 divisors (see below), whose sum is σ = 5105013984. Its totient is φ = 636244224.

The previous prime is 1926749849. The next prime is 1926749857. The reversal of 1926749856 is 6589476291.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 1926749796 and 1926749805.

It is not an unprimeable number, because it can be changed into a prime (1926749857) 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, 83515 + ... + 104058.

It is an arithmetic number, because the mean of its divisors is an integer number (106354458).

Almost surely, 2^1926749856 is an apocalyptic number.

1926749856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1926749856 is an abundant number, since it is smaller than the sum of its proper divisors (3178264128).

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

1926749856 is a wasteful number, since it uses less digits than its factorization.

1926749856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187693 (or 187685 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 57.

The square root of 1926749856 is about 43894.7588670903. The cubic root of 1926749856 is about 1244.3477830911.

The spelling of 1926749856 in words is "one billion, nine hundred twenty-six million, seven hundred forty-nine thousand, eight hundred fifty-six".