249480770 has 64 divisors (see below), whose sum is σ = 584257536. Its totient is φ = 74374080.

The previous prime is 249480769. The next prime is 249480809. The reversal of 249480770 is 77084942.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10667 + ... + 24753.

It is an arithmetic number, because the mean of its divisors is an integer number (9129024).

Almost surely, 2^249480770 is an apocalyptic number.

249480770 is an abundant number, since it is smaller than the sum of its proper divisors (334776766).

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

249480770 is a wasteful number, since it uses less digits than its factorization.

249480770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14135.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 249480770 is about 15794.9602721881. The cubic root of 249480770 is about 629.5240967946.

It can be divided in two parts, 249480 and 770, that multiplied together give a square (192099600 = 13860²).

The spelling of 249480770 in words is "two hundred forty-nine million, four hundred eighty thousand, seven hundred seventy".