42454646 has 8 divisors (see below), whose sum is σ = 68580624. Its totient is φ = 19594440.

The previous prime is 42454591. The next prime is 42454673. The reversal of 42454646 is 64645424.

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, 816410 + ... + 816461.

It is an arithmetic number, because the mean of its divisors is an integer number (8572578).

Almost surely, 2^42454646 is an apocalyptic number.

42454646 is a deficient number, since it is larger than the sum of its proper divisors (26125978).

42454646 is a wasteful number, since it uses less digits than its factorization.

42454646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632886.

The product of its digits is 92160, while the sum is 35.

The square root of 42454646 is about 6515.7229836757. The cubic root of 42454646 is about 348.8524210256.

The spelling of 42454646 in words is "forty-two million, four hundred fifty-four thousand, six hundred forty-six".