442287730373478 has 32 divisors (see below), whose sum is σ = 1006947560063232. Its totient is φ = 128199342136800.

The previous prime is 442287730373459. The next prime is 442287730373551. The reversal of 442287730373478 is 874373037782244.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145681069093 + ... + 145681072128.

It is an arithmetic number, because the mean of its divisors is an integer number (31467111251976).

Almost surely, 2^{442287730373478} is an apocalyptic number.

442287730373478 is an abundant number, since it is smaller than the sum of its proper divisors (564659829689754).

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

442287730373478 is a wasteful number, since it uses less digits than its factorization.

442287730373478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291362141260.

The product of its (nonzero) digits is 1062125568, while the sum is 69.

The spelling of 442287730373478 in words is "four hundred forty-two trillion, two hundred eighty-seven billion, seven hundred thirty million, three hundred seventy-three thousand, four hundred seventy-eight".