444201413 has 4 divisors (see below), whose sum is σ = 444262860. Its totient is φ = 444139968.

The previous prime is 444201409. The next prime is 444201431. The reversal of 444201413 is 314102444.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 133102369 + 311099044 = 11537^2 + 17638^2 .

It is a cyclic number.

It is not a de Polignac number, because 444201413 - 2² = 444201409 is a prime.

It is a super-2 number, since 2×444201413² = 394629790622393138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444201013) 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, 18170 + ... + 34907.

It is an arithmetic number, because the mean of its divisors is an integer number (111065715).

Almost surely, 2^444201413 is an apocalyptic number.

It is an amenable number.

444201413 is a deficient number, since it is larger than the sum of its proper divisors (61447).

444201413 is an equidigital number, since it uses as much as digits as its factorization.

444201413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61446.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 444201413 is about 21076.0862827993. The cubic root of 444201413 is about 763.0037022289.

Adding to 444201413 its reverse (314102444), we get a palindrome (758303857).

The spelling of 444201413 in words is "four hundred forty-four million, two hundred one thousand, four hundred thirteen".