442379478 has 8 divisors (see below), whose sum is σ = 884758968. Its totient is φ = 147459824.

The previous prime is 442379477. The next prime is 442379479. The reversal of 442379478 is 874973244.

It is an interprime number because it is at equal distance from previous prime (442379477) and next prime (442379479).

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

442379478 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442379473) 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, 36864951 + ... + 36864962.

It is an arithmetic number, because the mean of its divisors is an integer number (110594871).

Almost surely, 2^442379478 is an apocalyptic number.

442379478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442379478 is a wasteful number, since it uses less digits than its factorization.

442379478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73729918.

The product of its digits is 1354752, while the sum is 48.

The square root of 442379478 is about 21032.8190692546. The cubic root of 442379478 is about 761.9590949446.

The spelling of 442379478 in words is "four hundred forty-two million, three hundred seventy-nine thousand, four hundred seventy-eight".