444892890 has 64 divisors (see below), whose sum is σ = 1217534976. Its totient is φ = 103068672.

The previous prime is 444892883. The next prime is 444892891. The reversal of 444892890 is 98298444.

It is a super-3 number, since 3×444892890³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (444892891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26922 + ... + 40181.

It is an arithmetic number, because the mean of its divisors is an integer number (19023984).

Almost surely, 2^444892890 is an apocalyptic number.

444892890 is an abundant number, since it is smaller than the sum of its proper divisors (772642086).

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

444892890 is a wasteful number, since it uses less digits than its factorization.

444892890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67143.

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 444892890 is about 21092.4842064656. The cubic root of 444892890 is about 763.3994130972.

The spelling of 444892890 in words is "four hundred forty-four million, eight hundred ninety-two thousand, eight hundred ninety".