445340434 has 16 divisors (see below), whose sum is σ = 832844736. Its totient is φ = 173509200.

The previous prime is 445340431. The next prime is 445340447. The reversal of 445340434 is 434043544.

It is a junction number, because it is equal to n+sod(n) for n = 445340396 and 445340405.

It is not an unprimeable number, because it can be changed into a prime (445340431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1445757 + ... + 1446064.

It is an arithmetic number, because the mean of its divisors is an integer number (52052796).

Almost surely, 2^445340434 is an apocalyptic number.

445340434 is a deficient number, since it is larger than the sum of its proper divisors (387504302).

445340434 is a wasteful number, since it uses less digits than its factorization.

445340434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891841.

The product of its (nonzero) digits is 46080, while the sum is 31.

The square root of 445340434 is about 21103.0906267305. The cubic root of 445340434 is about 763.6553101420.

Adding to 445340434 its reverse (434043544), we get a palindrome (879383978).

The spelling of 445340434 in words is "four hundred forty-five million, three hundred forty thousand, four hundred thirty-four".