249066369 has 24 divisors (see below), whose sum is σ = 372320000. Its totient is φ = 160276320.

The previous prime is 249066359. The next prime is 249066373. The reversal of 249066369 is 963660942.

249066369 is a `hidden beast` number, since 2 + 4 + 9 + 0 + 6 + 636 + 9 = 666.

249066369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-249066369 is a prime.

It is a super-2 number, since 2×249066369² = 124068112333688322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249066329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138327 + ... + 140115.

Almost surely, 2^249066369 is an apocalyptic number.

It is an amenable number.

249066369 is a deficient number, since it is larger than the sum of its proper divisors (123253631).

249066369 is a wasteful number, since it uses less digits than its factorization.

249066369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325 (or 2322 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 249066369 is about 15781.8366801840. The cubic root of 249066369 is about 629.1753458115.

The spelling of 249066369 in words is "two hundred forty-nine million, sixty-six thousand, three hundred sixty-nine".