1203994080 has 72 divisors (see below), whose sum is σ = 4108634712. Its totient is φ = 321064704.

The previous prime is 1203994031. The next prime is 1203994123. The reversal of 1203994080 is 804993021.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 416614 + ... + 419493.

It is an arithmetic number, because the mean of its divisors is an integer number (57064371).

Almost surely, 2^1203994080 is an apocalyptic number.

1203994080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203994080 is an abundant number, since it is smaller than the sum of its proper divisors (2904640632).

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

1203994080 is a wasteful number, since it uses less digits than its factorization.

1203994080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836128 (or 836117 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1203994080 is about 34698.6178399083. The cubic root of 1203994080 is about 1063.8362478128.

The spelling of 1203994080 in words is "one billion, two hundred three million, nine hundred ninety-four thousand, eighty".