1932798078 has 32 divisors (see below), whose sum is σ = 4353952800. Its totient is φ = 635439168.

The previous prime is 1932798071. The next prime is 1932798079. The reversal of 1932798078 is 8708972391.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1932798071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241213 + ... + 249096.

It is an arithmetic number, because the mean of its divisors is an integer number (136061025).

Almost surely, 2^1932798078 is an apocalyptic number.

1932798078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1932798078 is an abundant number, since it is smaller than the sum of its proper divisors (2421154722).

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

1932798078 is a wasteful number, since it uses less digits than its factorization.

1932798078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490393 (or 490387 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The square root of 1932798078 is about 43963.5994659218. The cubic root of 1932798078 is about 1245.6484588236.

The spelling of 1932798078 in words is "one billion, nine hundred thirty-two million, seven hundred ninety-eight thousand, seventy-eight".