442387254 has 8 divisors (see below), whose sum is σ = 884774520. Its totient is φ = 147462416.

The previous prime is 442387219. The next prime is 442387273. The reversal of 442387254 is 452783244.

It is a happy number.

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

442387254 is an admirable number.

It is a Curzon number.

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, 36865599 + ... + 36865610.

It is an arithmetic number, because the mean of its divisors is an integer number (110596815).

Almost surely, 2^442387254 is an apocalyptic number.

442387254 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.

442387254 is a wasteful number, since it uses less digits than its factorization.

442387254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73731214.

The product of its digits is 215040, while the sum is 39.

The square root of 442387254 is about 21033.0039224073. The cubic root of 442387254 is about 761.9635594067.

The spelling of 442387254 in words is "four hundred forty-two million, three hundred eighty-seven thousand, two hundred fifty-four".