1183900480 has 56 divisors (see below), whose sum is σ = 3221906688. Its totient is φ = 405907968.

The previous prime is 1183900457. The next prime is 1183900483. The reversal of 1183900480 is 840093811.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1183900483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262024 + ... + 266503.

It is an arithmetic number, because the mean of its divisors is an integer number (57534048).

Almost surely, 2^1183900480 is an apocalyptic number.

1183900480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1183900480 is an abundant number, since it is smaller than the sum of its proper divisors (2038006208).

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

1183900480 is an equidigital number, since it uses as much as digits as its factorization.

1183900480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528551 (or 528541 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 1183900480 is about 34407.8549171552. The cubic root of 1183900480 is about 1057.8848530410.

The spelling of 1183900480 in words is "one billion, one hundred eighty-three million, nine hundred thousand, four hundred eighty".