1195437798 has 16 divisors (see below), whose sum is σ = 2656528560. Its totient is φ = 398479248.

The previous prime is 1195437769. The next prime is 1195437871. The reversal of 1195437798 is 8977345911.

It is a happy number.

1195437798 is a `hidden beast` number, since 1 + 1 + 9 + 543 + 7 + 7 + 98 = 666.

1195437798 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 22137737 = 1195437798 / (1 + 1 + 9 + 5 + 4 + 3 + 7 + 7 + 9 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11068815 + ... + 11068922.

It is an arithmetic number, because the mean of its divisors is an integer number (166033035).

Almost surely, 2^1195437798 is an apocalyptic number.

1195437798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1195437798 is an abundant number, since it is smaller than the sum of its proper divisors (1461090762).

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

1195437798 is a wasteful number, since it uses less digits than its factorization.

1195437798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22137748 (or 22137742 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 54.

The square root of 1195437798 is about 34575.1037308639. The cubic root of 1195437798 is about 1061.3101747647.

The spelling of 1195437798 in words is "one billion, one hundred ninety-five million, four hundred thirty-seven thousand, seven hundred ninety-eight".