13440898 has 8 divisors (see below), whose sum is σ = 20340108. Its totient is φ = 6660864.

The previous prime is 13440893. The next prime is 13440929. The reversal of 13440898 is 89804431.

It can be written as a sum of positive squares in 2 ways, for example, as 12723489 + 717409 = 3567^2 + 847^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13440893) 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 3 ways as a sum of consecutive naturals, for example, 29511 + ... + 29962.

Almost surely, 2^13440898 is an apocalyptic number.

13440898 is a deficient number, since it is larger than the sum of its proper divisors (6899210).

13440898 is a wasteful number, since it uses less digits than its factorization.

13440898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59588.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 13440898 is about 3666.1830287098. The cubic root of 13440898 is about 237.7621732723.

The spelling of 13440898 in words is "thirteen million, four hundred forty thousand, eight hundred ninety-eight".