1181898480 has 320 divisors, whose sum is σ = 4589706240. Its totient is φ = 245317632.

The previous prime is 1181898457. The next prime is 1181898517. The reversal of 1181898480 is 848981811.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 827527 + ... + 828953.

It is an arithmetic number, because the mean of its divisors is an integer number (14342832).

Almost surely, 2^1181898480 is an apocalyptic number.

1181898480 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 1181898480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2294853120).

1181898480 is an abundant number, since it is smaller than the sum of its proper divisors (3407807760).

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

1181898480 is a wasteful number, since it uses less digits than its factorization.

1181898480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496 (or 1490 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 48.

The square root of 1181898480 is about 34378.7504135912. The cubic root of 1181898480 is about 1057.2882149422.

The spelling of 1181898480 in words is "one billion, one hundred eighty-one million, eight hundred ninety-eight thousand, four hundred eighty".