442157745430 has 32 divisors (see below), whose sum is σ = 809494974720. Its totient is φ = 173842465920.

The previous prime is 442157745427. The next prime is 442157745451. The reversal of 442157745430 is 34547751244.

It is a happy number.

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, 625932 + ... + 1129648.

It is an arithmetic number, because the mean of its divisors is an integer number (25296717960).

Almost surely, 2^442157745430 is an apocalyptic number.

442157745430 is a deficient number, since it is larger than the sum of its proper divisors (367337229290).

442157745430 is a wasteful number, since it uses less digits than its factorization.

442157745430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505224.

The product of its (nonzero) digits is 1881600, while the sum is 46.

The spelling of 442157745430 in words is "four hundred forty-two billion, one hundred fifty-seven million, seven hundred forty-five thousand, four hundred thirty".