249129476 has 6 divisors (see below), whose sum is σ = 435976590. Its totient is φ = 124564736.

The previous prime is 249129449. The next prime is 249129479. The reversal of 249129476 is 674921942.

249129476 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 244609600 + 4519876 = 15640^2 + 2126^2 .

It is a super-3 number, since 3×249129476³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (249129479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31141181 + ... + 31141188.

It is an arithmetic number, because the mean of its divisors is an integer number (72662765).

Almost surely, 2^249129476 is an apocalyptic number.

It is an amenable number.

249129476 is a deficient number, since it is larger than the sum of its proper divisors (186847114).

249129476 is a wasteful number, since it uses less digits than its factorization.

249129476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62282373 (or 62282371 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 249129476 is about 15783.8359089291. The cubic root of 249129476 is about 629.2284802642.

The spelling of 249129476 in words is "two hundred forty-nine million, one hundred twenty-nine thousand, four hundred seventy-six".