1184946140 has 96 divisors (see below), whose sum is σ = 2934779904. Its totient is φ = 393465600.

The previous prime is 1184946107. The next prime is 1184946143. The reversal of 1184946140 is 416494811.

It is a junction number, because it is equal to n+sod(n) for n = 1184946094 and 1184946103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1184946143) 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, 663689 + ... + 665471.

It is an arithmetic number, because the mean of its divisors is an integer number (30570624).

Almost surely, 2^1184946140 is an apocalyptic number.

1184946140 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 1184946140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1467389952).

1184946140 is an abundant number, since it is smaller than the sum of its proper divisors (1749833764).

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

1184946140 is a wasteful number, since it uses less digits than its factorization.

1184946140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947 (or 1945 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 1184946140 is about 34423.0466402961. The cubic root of 1184946140 is about 1058.1962143364.

The spelling of 1184946140 in words is "one billion, one hundred eighty-four million, nine hundred forty-six thousand, one hundred forty".