442251243 has 48 divisors (see below), whose sum is σ = 782945280. Its totient is φ = 234793728.

The previous prime is 442251241. The next prime is 442251253. The reversal of 442251243 is 342152244.

It is not a de Polignac number, because 442251243 - 2¹ = 442251241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442251241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81996 + ... + 87222.

It is an arithmetic number, because the mean of its divisors is an integer number (16311360).

Almost surely, 2^442251243 is an apocalyptic number.

442251243 is a deficient number, since it is larger than the sum of its proper divisors (340694037).

442251243 is a wasteful number, since it uses less digits than its factorization.

442251243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5336 (or 5333 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 442251243 is about 21029.7703981760. The cubic root of 442251243 is about 761.8854633891.

The spelling of 442251243 in words is "four hundred forty-two million, two hundred fifty-one thousand, two hundred forty-three".