1192855440 has 160 divisors (see below), whose sum is σ = 4410003456. Its totient is φ = 260789760.

The previous prime is 1192855429. The next prime is 1192855457. The reversal of 1192855440 is 445582911.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23205 + ... + 54075.

Almost surely, 2^1192855440 is an apocalyptic number.

1192855440 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 1192855440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2205001728).

1192855440 is an abundant number, since it is smaller than the sum of its proper divisors (3217148016).

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

1192855440 is a wasteful number, since it uses less digits than its factorization.

1192855440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30917 (or 30911 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 1192855440 is about 34537.7393585625. The cubic root of 1192855440 is about 1060.5454176605.

The spelling of 1192855440 in words is "one billion, one hundred ninety-two million, eight hundred fifty-five thousand, four hundred forty".