249049942 has 8 divisors (see below), whose sum is σ = 373712976. Its totient is φ = 124478952.

The previous prime is 249049907. The next prime is 249049943. The reversal of 249049942 is 249940942.

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

It is a super-2 number, since 2×249049942² = 124051747220406728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249049943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15793 + ... + 27340.

It is an arithmetic number, because the mean of its divisors is an integer number (46714122).

Almost surely, 2^249049942 is an apocalyptic number.

249049942 is a deficient number, since it is larger than the sum of its proper divisors (124663034).

249049942 is a wasteful number, since it uses less digits than its factorization.

249049942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46022.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 249049942 is about 15781.3162315442. The cubic root of 249049942 is about 629.1615132325.

The spelling of 249049942 in words is "two hundred forty-nine million, forty-nine thousand, nine hundred forty-two".