249423477 has 8 divisors (see below), whose sum is σ = 347024064. Its totient is φ = 159052608.

The previous prime is 249423463. The next prime is 249423491. The reversal of 249423477 is 774324942.

It is an interprime number because it is at equal distance from previous prime (249423463) and next prime (249423491).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 249423477 - 2⁶ = 249423413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249423437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1807348 + ... + 1807485.

It is an arithmetic number, because the mean of its divisors is an integer number (43378008).

Almost surely, 2^249423477 is an apocalyptic number.

It is an amenable number.

249423477 is a deficient number, since it is larger than the sum of its proper divisors (97600587).

249423477 is a wasteful number, since it uses less digits than its factorization.

249423477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614859.

The product of its digits is 338688, while the sum is 42.

The square root of 249423477 is about 15793.1465199307. The cubic root of 249423477 is about 629.4759032533.

The spelling of 249423477 in words is "two hundred forty-nine million, four hundred twenty-three thousand, four hundred seventy-seven".