418368493 has 4 divisors (see below), whose sum is σ = 418492768. Its totient is φ = 418244220.

The previous prime is 418368481. The next prime is 418368499. The reversal of 418368493 is 394863814.

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-418368493 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 (418368499) 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, 56943 + ... + 63868.

It is an arithmetic number, because the mean of its divisors is an integer number (104623192).

Almost surely, 2^418368493 is an apocalyptic number.

It is an amenable number.

418368493 is a deficient number, since it is larger than the sum of its proper divisors (124275).

418368493 is a wasteful number, since it uses less digits than its factorization.

418368493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124274.

The product of its digits is 497664, while the sum is 46.

The square root of 418368493 is about 20454.0581059114. The cubic root of 418368493 is about 747.9162861359.

The spelling of 418368493 in words is "four hundred eighteen million, three hundred sixty-eight thousand, four hundred ninety-three".