249234890 has 32 divisors (see below), whose sum is σ = 463760640. Its totient is φ = 96382144.

The previous prime is 249234889. The next prime is 249234899. The reversal of 249234890 is 98432942.

It is not an unprimeable number, because it can be changed into a prime (249234899) 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, 35816 + ... + 42204.

It is an arithmetic number, because the mean of its divisors is an integer number (14492520).

Almost surely, 2^249234890 is an apocalyptic number.

249234890 is a deficient number, since it is larger than the sum of its proper divisors (214525750).

249234890 is a wasteful number, since it uses less digits than its factorization.

249234890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6526.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 249234890 is about 15787.1748580929. The cubic root of 249234890 is about 629.3172161014.

The spelling of 249234890 in words is "two hundred forty-nine million, two hundred thirty-four thousand, eight hundred ninety".