249992086 has 16 divisors (see below), whose sum is σ = 385292880. Its totient is φ = 121605120.

The previous prime is 249992081. The next prime is 249992087. The reversal of 249992086 is 680299942.

It is a happy number.

249992086 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249992081) 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, 526 + ... + 22366.

It is an arithmetic number, because the mean of its divisors is an integer number (24080805).

Almost surely, 2^249992086 is an apocalyptic number.

249992086 is a deficient number, since it is larger than the sum of its proper divisors (135300794).

249992086 is a wasteful number, since it uses less digits than its factorization.

249992086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21999.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 249992086 is about 15811.1380362073. The cubic root of 249992086 is about 629.9538775338.

The spelling of 249992086 in words is "two hundred forty-nine million, nine hundred ninety-two thousand, eighty-six".