1181420352 has 168 divisors, whose sum is σ = 3920134400. Its totient is φ = 333186048.

The previous prime is 1181420351. The next prime is 1181420413. The reversal of 1181420352 is 2530241811.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1181420351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 316674 + ... + 320382.

Almost surely, 2^1181420352 is an apocalyptic number.

1181420352 is a gapful number since it is divisible by the number (12) 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 1181420352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1960067200).

1181420352 is an abundant number, since it is smaller than the sum of its proper divisors (2738714048).

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

1181420352 is a wasteful number, since it uses less digits than its factorization.

1181420352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3813 (or 3800 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 1181420352 is about 34371.7958797617. The cubic root of 1181420352 is about 1057.1456230892.

The spelling of 1181420352 in words is "one billion, one hundred eighty-one million, four hundred twenty thousand, three hundred fifty-two".