418340249 has 4 divisors (see below), whose sum is σ = 428069136. Its totient is φ = 408611364.

The previous prime is 418340243. The next prime is 418340287. The reversal of 418340249 is 942043814.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-418340249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (418340243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4864379 + ... + 4864464.

It is an arithmetic number, because the mean of its divisors is an integer number (107017284).

Almost surely, 2^418340249 is an apocalyptic number.

It is an amenable number.

418340249 is a deficient number, since it is larger than the sum of its proper divisors (9728887).

418340249 is an equidigital number, since it uses as much as digits as its factorization.

418340249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9728886.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 418340249 is about 20453.3676689195. The cubic root of 418340249 is about 747.8994551816.

The spelling of 418340249 in words is "four hundred eighteen million, three hundred forty thousand, two hundred forty-nine".