444201431 has 2 divisors, whose sum is σ = 444201432. Its totient is φ = 444201430.

The previous prime is 444201409. The next prime is 444201469. The reversal of 444201431 is 134102444.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 444201431 - 2⁶ = 444201367 is a prime.

It is a super-2 number, since 2×444201431² = 394629822604895522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 444201397 and 444201406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444201031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222100715 + 222100716.

It is an arithmetic number, because the mean of its divisors is an integer number (222100716).

Almost surely, 2^444201431 is an apocalyptic number.

444201431 is a deficient number, since it is larger than the sum of its proper divisors (1).

444201431 is an equidigital number, since it uses as much as digits as its factorization.

444201431 is an evil number, because the sum of its binary digits is even.

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

The square root of 444201431 is about 21076.0867098235. The cubic root of 444201431 is about 763.0037125350.

Adding to 444201431 its reverse (134102444), we get a palindrome (578303875).

The spelling of 444201431 in words is "four hundred forty-four million, two hundred one thousand, four hundred thirty-one".