249794838 has 72 divisors (see below), whose sum is σ = 593860800. Its totient is φ = 75790080.

The previous prime is 249794833. The next prime is 249794851. The reversal of 249794838 is 838497942.

249794838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×249794838² = 124794922182892488, 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 (249794833) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 160488 + ... + 162036.

Almost surely, 2^249794838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249794838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296930400).

249794838 is an abundant number, since it is smaller than the sum of its proper divisors (344065962).

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

249794838 is a wasteful number, since it uses less digits than its factorization.

249794838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622 (or 1602 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 249794838 is about 15804.8991771539. The cubic root of 249794838 is about 629.7881525048.

The spelling of 249794838 in words is "two hundred forty-nine million, seven hundred ninety-four thousand, eight hundred thirty-eight".