442148294 has 8 divisors (see below), whose sum is σ = 757968528. Its totient is φ = 189492120.

The previous prime is 442148269. The next prime is 442148303. The reversal of 442148294 is 492841244.

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

It is a super-2 number, since 2×442148294² = 390990227774220872, which contains 22 as substring.

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, 15790997 + ... + 15791024.

It is an arithmetic number, because the mean of its divisors is an integer number (94746066).

Almost surely, 2^442148294 is an apocalyptic number.

442148294 is a deficient number, since it is larger than the sum of its proper divisors (315820234).

442148294 is a wasteful number, since it uses less digits than its factorization.

442148294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31582030.

The product of its digits is 73728, while the sum is 38.

The square root of 442148294 is about 21027.3225589945. The cubic root of 442148294 is about 761.8263405603.

The spelling of 442148294 in words is "four hundred forty-two million, one hundred forty-eight thousand, two hundred ninety-four".