249964454 has 16 divisors (see below), whose sum is σ = 384531840. Its totient is φ = 121794240.

The previous prime is 249964433. The next prime is 249964459. The reversal of 249964454 is 454469942.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 249964399 and 249964408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249964459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141227 + ... + 142985.

It is an arithmetic number, because the mean of its divisors is an integer number (24033240).

Almost surely, 2^249964454 is an apocalyptic number.

249964454 is a deficient number, since it is larger than the sum of its proper divisors (134567386).

249964454 is a wasteful number, since it uses less digits than its factorization.

249964454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535.

The product of its digits is 1244160, while the sum is 47.

The square root of 249964454 is about 15810.2641976660. The cubic root of 249964454 is about 629.9306667632.

The spelling of 249964454 in words is "two hundred forty-nine million, nine hundred sixty-four thousand, four hundred fifty-four".