249836530 has 16 divisors (see below), whose sum is σ = 451008000. Its totient is φ = 99645232.

The previous prime is 249836527. The next prime is 249836551. The reversal of 249836530 is 35638942.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32530 + ... + 39469.

It is an arithmetic number, because the mean of its divisors is an integer number (28188000).

Almost surely, 2^249836530 is an apocalyptic number.

249836530 is a deficient number, since it is larger than the sum of its proper divisors (201171470).

249836530 is a wasteful number, since it uses less digits than its factorization.

249836530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72353.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 249836530 is about 15806.2180802367. The cubic root of 249836530 is about 629.8231888133.

It can be divided in two parts, 24983 and 6530, that added together give a palindrome (31513).

The spelling of 249836530 in words is "two hundred forty-nine million, eight hundred thirty-six thousand, five hundred thirty".