249771036 has 24 divisors (see below), whose sum is σ = 613473280. Its totient is φ = 78874992.

The previous prime is 249771029. The next prime is 249771037. The reversal of 249771036 is 630177942.

249771036 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 249770985 and 249771003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249771037) 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, 547516 + ... + 547971.

Almost surely, 2^249771036 is an apocalyptic number.

It is an amenable number.

249771036 is an abundant number, since it is smaller than the sum of its proper divisors (363702244).

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

249771036 is a wasteful number, since it uses less digits than its factorization.

249771036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095513 (or 1095511 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 249771036 is about 15804.1461648518. The cubic root of 249771036 is about 629.7681484969.

The spelling of 249771036 in words is "two hundred forty-nine million, seven hundred seventy-one thousand, thirty-six".