13404431415 has 32 divisors (see below), whose sum is σ = 21738974400. Its totient is φ = 7052313600.

The previous prime is 13404431389. The next prime is 13404431483. The reversal of 13404431415 is 51413440431.

It is not a de Polignac number, because 13404431415 - 2²¹ = 13402334263 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 356515 + ... + 392315.

It is an arithmetic number, because the mean of its divisors is an integer number (679342950).

Almost surely, 2^13404431415 is an apocalyptic number.

13404431415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13404431415 is a deficient number, since it is larger than the sum of its proper divisors (8334542985).

13404431415 is a wasteful number, since it uses less digits than its factorization.

13404431415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36147.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 13404431415 its reverse (51413440431), we get a palindrome (64817871846).

The spelling of 13404431415 in words is "thirteen billion, four hundred four million, four hundred thirty-one thousand, four hundred fifteen".