921363242 has 8 divisors (see below), whose sum is σ = 1382175300. Its totient is φ = 460638144.

The previous prime is 921363239. The next prime is 921363253. The reversal of 921363242 is 242363129.

It can be written as a sum of positive squares in 2 ways, for example, as 600201001 + 321162241 = 24499^2 + 17921^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 921363199 and 921363208.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 23984 + ... + 49172.

Almost surely, 2^921363242 is an apocalyptic number.

921363242 is a deficient number, since it is larger than the sum of its proper divisors (460812058).

921363242 is a wasteful number, since it uses less digits than its factorization.

921363242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43480.

The product of its digits is 15552, while the sum is 32.

The square root of 921363242 is about 30353.9658364438. The cubic root of 921363242 is about 973.0689782437.

The spelling of 921363242 in words is "nine hundred twenty-one million, three hundred sixty-three thousand, two hundred forty-two".