442654390 has 8 divisors (see below), whose sum is σ = 796777920. Its totient is φ = 177061752.

The previous prime is 442654379. The next prime is 442654423. The reversal of 442654390 is 93456244.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22132710 + ... + 22132729.

It is an arithmetic number, because the mean of its divisors is an integer number (99597240).

Almost surely, 2^442654390 is an apocalyptic number.

442654390 is a deficient number, since it is larger than the sum of its proper divisors (354123530).

442654390 is a wasteful number, since it uses less digits than its factorization.

442654390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44265446.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 442654390 is about 21039.3533645880. The cubic root of 442654390 is about 762.1168993733.

The spelling of 442654390 in words is "four hundred forty-two million, six hundred fifty-four thousand, three hundred ninety".