249023822 has 4 divisors (see below), whose sum is σ = 373535736. Its totient is φ = 124511910.

The previous prime is 249023809. The next prime is 249023843. The reversal of 249023822 is 228320942.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 228320942 = 2 ⋅114160471.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62255954 + ... + 62255957.

It is an arithmetic number, because the mean of its divisors is an integer number (93383934).

Almost surely, 2^249023822 is an apocalyptic number.

249023822 is a deficient number, since it is larger than the sum of its proper divisors (124511914).

249023822 is a wasteful number, since it uses less digits than its factorization.

249023822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124511913.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 249023822 is about 15780.4886489614. The cubic root of 249023822 is about 629.1395172785.

The spelling of 249023822 in words is "two hundred forty-nine million, twenty-three thousand, eight hundred twenty-two".