42454644 has 24 divisors (see below), whose sum is σ = 104888448. Its totient is φ = 13319040.

The previous prime is 42454591. The next prime is 42454673. The reversal of 42454644 is 44645424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103852 + ... + 104259.

It is an arithmetic number, because the mean of its divisors is an integer number (4370352).

Almost surely, 2^42454644 is an apocalyptic number.

It is an amenable number.

42454644 is an abundant number, since it is smaller than the sum of its proper divisors (62433804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42454644 is a wasteful number, since it uses less digits than its factorization.

42454644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208135 (or 208133 counting only the distinct ones).

The product of its digits is 61440, while the sum is 33.

The square root of 42454644 is about 6515.7228302008. The cubic root of 42454644 is about 348.8524155476.

The spelling of 42454644 in words is "forty-two million, four hundred fifty-four thousand, six hundred forty-four".