249421846 has 8 divisors (see below), whose sum is σ = 386201664. Its totient is φ = 120687960.

The previous prime is 249421831. The next prime is 249421853. The reversal of 249421846 is 648124942.

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

It is a super-2 number, since 2×249421846² = 124422514524095432, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 249421799 and 249421808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2011405 + ... + 2011528.

It is an arithmetic number, because the mean of its divisors is an integer number (48275208).

Almost surely, 2^249421846 is an apocalyptic number.

249421846 is a deficient number, since it is larger than the sum of its proper divisors (136779818).

249421846 is a wasteful number, since it uses less digits than its factorization.

249421846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022966.

The product of its digits is 110592, while the sum is 40.

The square root of 249421846 is about 15793.0948835243. The cubic root of 249421846 is about 629.4745311859.

The spelling of 249421846 in words is "two hundred forty-nine million, four hundred twenty-one thousand, eight hundred forty-six".