430444442 has 4 divisors (see below), whose sum is σ = 645666666. Its totient is φ = 215222220.

The previous prime is 430444439. The next prime is 430444451. The reversal of 430444442 is 244444034.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244444034 = 2 ⋅122222017.

It can be written as a sum of positive squares in only one way, i.e., 258598561 + 171845881 = 16081^2 + 13109^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107611109 + ... + 107611112.

Almost surely, 2^430444442 is an apocalyptic number.

430444442 is a deficient number, since it is larger than the sum of its proper divisors (215222224).

430444442 is a wasteful number, since it uses less digits than its factorization.

430444442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215222223.

The product of its (nonzero) digits is 24576, while the sum is 29.

The square root of 430444442 is about 20747.1550338836. The cubic root of 430444442 is about 755.0441867038.

Adding to 430444442 its reverse (244444034), we get a palindrome (674888476).

The spelling of 430444442 in words is "four hundred thirty million, four hundred forty-four thousand, four hundred forty-two".