444420121330 has 64 divisors (see below), whose sum is σ = 830360522880. Its totient is φ = 171054374400.

The previous prime is 444420121283. The next prime is 444420121351. The reversal of 444420121330 is 33121024444.

It is a super-3 number, since 3×444420121330³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133417765 + ... + 133421095.

It is an arithmetic number, because the mean of its divisors is an integer number (12974383170).

Almost surely, 2^444420121330 is an apocalyptic number.

444420121330 is a deficient number, since it is larger than the sum of its proper divisors (385940401550).

444420121330 is a wasteful number, since it uses less digits than its factorization.

444420121330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4795.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 444420121330 its reverse (33121024444), we get a palindrome (477541145774).

The spelling of 444420121330 in words is "four hundred forty-four billion, four hundred twenty million, one hundred twenty-one thousand, three hundred thirty".