414447991 has 8 divisors (see below), whose sum is σ = 420217200. Its totient is φ = 408703680.

The previous prime is 414447911. The next prime is 414448003. The reversal of 414447991 is 199744414.

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

It is a cyclic number.

It is not a de Polignac number, because 414447991 - 2²⁷ = 280230263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (414447911) by changing a digit.

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, 28636 + ... + 40606.

It is an arithmetic number, because the mean of its divisors is an integer number (52527150).

Almost surely, 2^414447991 is an apocalyptic number.

414447991 is a deficient number, since it is larger than the sum of its proper divisors (5769209).

414447991 is a wasteful number, since it uses less digits than its factorization.

414447991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12449.

The product of its digits is 145152, while the sum is 43.

The square root of 414447991 is about 20357.9957510557. The cubic root of 414447991 is about 745.5727265721.

The spelling of 414447991 in words is "four hundred fourteen million, four hundred forty-seven thousand, nine hundred ninety-one".