249454836 has 48 divisors (see below), whose sum is σ = 647740800. Its totient is φ = 83022336.

The previous prime is 249454831. The next prime is 249454837. The reversal of 249454836 is 638454942.

It is a junction number, because it is equal to n+sod(n) for n = 249454791 and 249454800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249454831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89236 + ... + 91988.

It is an arithmetic number, because the mean of its divisors is an integer number (13494600).

Almost surely, 2^249454836 is an apocalyptic number.

It is an amenable number.

249454836 is an abundant number, since it is smaller than the sum of its proper divisors (398285964).

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

249454836 is a wasteful number, since it uses less digits than its factorization.

249454836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3605 (or 3597 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 249454836 is about 15794.1392927883. The cubic root of 249454836 is about 629.5022826301.

The spelling of 249454836 in words is "two hundred forty-nine million, four hundred fifty-four thousand, eight hundred thirty-six".