1233401980 has 24 divisors (see below), whose sum is σ = 2594174688. Its totient is φ = 492593088.

The previous prime is 1233401971. The next prime is 1233401999. The reversal of 1233401980 is 891043321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34719 + ... + 60598.

It is an arithmetic number, because the mean of its divisors is an integer number (108090612).

Almost surely, 2^1233401980 is an apocalyptic number.

1233401980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1233401980 is an abundant number, since it is smaller than the sum of its proper divisors (1360772708).

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

1233401980 is a wasteful number, since it uses less digits than its factorization.

1233401980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95973 (or 95971 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1233401980 is about 35119.8231772314. The cubic root of 1233401980 is about 1072.4281711575.

The spelling of 1233401980 in words is "one billion, two hundred thirty-three million, four hundred one thousand, nine hundred eighty".