13404402320 has 40 divisors (see below), whose sum is σ = 31171754880. Its totient is φ = 5360639360.

The previous prime is 13404402313. The next prime is 13404402331. The reversal of 13404402320 is 2320440431.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442211 + ... + 471549.

It is an arithmetic number, because the mean of its divisors is an integer number (779293872).

Almost surely, 2^13404402320 is an apocalyptic number.

13404402320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13404402320 is an abundant number, since it is smaller than the sum of its proper divisors (17767352560).

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

13404402320 is a wasteful number, since it uses less digits than its factorization.

13404402320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35063 (or 35057 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 13404402320 its reverse (2320440431), we get a palindrome (15724842751).

The spelling of 13404402320 in words is "thirteen billion, four hundred four million, four hundred two thousand, three hundred twenty".