444213340 has 12 divisors (see below), whose sum is σ = 932848056. Its totient is φ = 177685328.

The previous prime is 444213337. The next prime is 444213347. The reversal of 444213340 is 43312444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444213347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11105314 + ... + 11105353.

It is an arithmetic number, because the mean of its divisors is an integer number (77737338).

Almost surely, 2^444213340 is an apocalyptic number.

It is an amenable number.

444213340 is an abundant number, since it is smaller than the sum of its proper divisors (488634716).

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

444213340 is a wasteful number, since it uses less digits than its factorization.

444213340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22210676 (or 22210674 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 444213340 is about 21076.3692319147. The cubic root of 444213340 is about 763.0105311608.

Adding to 444213340 its reverse (43312444), we get a palindrome (487525784).

The spelling of 444213340 in words is "four hundred forty-four million, two hundred thirteen thousand, three hundred forty".