249295869 has 6 divisors (see below), whose sum is σ = 360094046. Its totient is φ = 166197240.

The previous prime is 249295847. The next prime is 249295877. The reversal of 249295869 is 968592942.

It is a happy number.

249295869 is a `hidden beast` number, since 2 + 492 + 95 + 8 + 69 = 666.

It can be written as a sum of positive squares in only one way, i.e., 201270969 + 48024900 = 14187^2 + 6930^2 .

It is not a de Polignac number, because 249295869 - 2¹² = 249291773 is a prime.

It is a super-2 number, since 2×249295869² = 124296860600930322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249295819) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13849762 + ... + 13849779.

Almost surely, 2^249295869 is an apocalyptic number.

It is an amenable number.

249295869 is a deficient number, since it is larger than the sum of its proper divisors (110798177).

249295869 is a wasteful number, since it uses less digits than its factorization.

249295869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27699547 (or 27699544 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 249295869 is about 15789.1060228247. The cubic root of 249295869 is about 629.3685358360.

The spelling of 249295869 in words is "two hundred forty-nine million, two hundred ninety-five thousand, eight hundred sixty-nine".