1196015920 has 80 divisors (see below), whose sum is σ = 3107613600. Its totient is φ = 424294400.

The previous prime is 1196015903. The next prime is 1196015969. The reversal of 1196015920 is 295106911.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19506 + ... + 52654.

It is an arithmetic number, because the mean of its divisors is an integer number (38845170).

Almost surely, 2^1196015920 is an apocalyptic number.

1196015920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1196015920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1553806800).

1196015920 is an abundant number, since it is smaller than the sum of its proper divisors (1911597680).

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

1196015920 is a wasteful number, since it uses less digits than its factorization.

1196015920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33214 (or 33208 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 34.

The square root of 1196015920 is about 34583.4631001581. The cubic root of 1196015920 is about 1061.4812328435.

Subtracting from 1196015920 its reverse (295106911), we obtain a palindrome (900909009).

It can be divided in two parts, 119601 and 5920, that added together give a palindrome (125521).

The spelling of 1196015920 in words is "one billion, one hundred ninety-six million, fifteen thousand, nine hundred twenty".