1926283878 has 96 divisors (see below), whose sum is σ = 4575916800. Its totient is φ = 583305408.

The previous prime is 1926283873. The next prime is 1926283901. The reversal of 1926283878 is 8783826291.

It is a happy number.

1926283878 is a `hidden beast` number, since 1 + 9 + 2 + 628 + 3 + 8 + 7 + 8 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1926283873) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1655725 + ... + 1656887.

It is an arithmetic number, because the mean of its divisors is an integer number (47665800).

Almost surely, 2^1926283878 is an apocalyptic number.

1926283878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1926283878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2287958400).

1926283878 is an abundant number, since it is smaller than the sum of its proper divisors (2649632922).

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

1926283878 is a wasteful number, since it uses less digits than its factorization.

1926283878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386 (or 1383 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 1926283878 is about 43889.4506459126. The cubic root of 1926283878 is about 1244.2474612218.

The spelling of 1926283878 in words is "one billion, nine hundred twenty-six million, two hundred eighty-three thousand, eight hundred seventy-eight".