444213730 has 16 divisors (see below), whose sum is σ = 841668480. Its totient is φ = 168333552.

The previous prime is 444213727. The next prime is 444213733. The reversal of 444213730 is 37312444.

It is an interprime number because it is at equal distance from previous prime (444213727) and next prime (444213733).

It is not an unprimeable number, because it can be changed into a prime (444213733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1168794 + ... + 1169173.

It is an arithmetic number, because the mean of its divisors is an integer number (52604280).

Almost surely, 2^444213730 is an apocalyptic number.

444213730 is a deficient number, since it is larger than the sum of its proper divisors (397454750).

444213730 is a wasteful number, since it uses less digits than its factorization.

444213730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337993.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 444213730 is about 21076.3784839806. The cubic root of 444213730 is about 763.0107544575.

The spelling of 444213730 in words is "four hundred forty-four million, two hundred thirteen thousand, seven hundred thirty".