1194685440 has 352 divisors, whose sum is σ = 4269812736. Its totient is φ = 283115520.

The previous prime is 1194685423. The next prime is 1194685447. The reversal of 1194685440 is 445864911.

It is a junction number, because it is equal to n+sod(n) for n = 1194685392 and 1194685401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1194685447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6189984 + ... + 6190176.

Almost surely, 2^1194685440 is an apocalyptic number.

1194685440 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 1194685440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2134906368).

1194685440 is an abundant number, since it is smaller than the sum of its proper divisors (3075127296).

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

1194685440 is a wasteful number, since it uses less digits than its factorization.

1194685440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 1194685440 is about 34564.2219643376. The cubic root of 1194685440 is about 1061.0874801248.

The spelling of 1194685440 in words is "one billion, one hundred ninety-four million, six hundred eighty-five thousand, four hundred forty".