249199454 has 12 divisors (see below), whose sum is σ = 427300344. Its totient is φ = 106774452.

The previous prime is 249199451. The next prime is 249199463. The reversal of 249199454 is 454991942.

It is a super-3 number, since 3×249199454³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 249199399 and 249199408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249199451) 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 5 ways as a sum of consecutive naturals, for example, 56957 + ... + 61175.

It is an arithmetic number, because the mean of its divisors is an integer number (35608362).

Almost surely, 2^249199454 is an apocalyptic number.

249199454 is a deficient number, since it is larger than the sum of its proper divisors (178100890).

249199454 is an frugal number, since it uses more digits than its factorization.

249199454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8447 (or 4228 counting only the distinct ones).

The product of its digits is 466560, while the sum is 47.

The square root of 249199454 is about 15786.0525147993. The cubic root of 249199454 is about 629.2873894295.

The spelling of 249199454 in words is "two hundred forty-nine million, one hundred ninety-nine thousand, four hundred fifty-four".