249226518 has 8 divisors (see below), whose sum is σ = 498453048. Its totient is φ = 83075504.

The previous prime is 249226513. The next prime is 249226519. The reversal of 249226518 is 815622942.

249226518 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

249226518 is an admirable number.

It is a super-2 number, since 2×249226518² = 124227714548808648, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249226513) 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, 20768871 + ... + 20768882.

It is an arithmetic number, because the mean of its divisors is an integer number (62306631).

Almost surely, 2^249226518 is an apocalyptic number.

249226518 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249226518 is a wasteful number, since it uses less digits than its factorization.

249226518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41537758.

The product of its digits is 69120, while the sum is 39.

The square root of 249226518 is about 15786.9097039288. The cubic root of 249226518 is about 629.3101695990.

The spelling of 249226518 in words is "two hundred forty-nine million, two hundred twenty-six thousand, five hundred eighteen".