249903046 has 4 divisors (see below), whose sum is σ = 374854572. Its totient is φ = 124951522.

The previous prime is 249903019. The next prime is 249903047. The reversal of 249903046 is 640309942.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 640309942 = 2 ⋅320154971.

It is a junction number, because it is equal to n+sod(n) for n = 249902996 and 249903014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249903047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62475760 + ... + 62475763.

It is an arithmetic number, because the mean of its divisors is an integer number (93713643).

Almost surely, 2^249903046 is an apocalyptic number.

249903046 is a deficient number, since it is larger than the sum of its proper divisors (124951526).

249903046 is a wasteful number, since it uses less digits than its factorization.

249903046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124951525.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 249903046 is about 15808.3220488450. The cubic root of 249903046 is about 629.8790781608.

The spelling of 249903046 in words is "two hundred forty-nine million, nine hundred three thousand, forty-six".