445520402 has 8 divisors (see below), whose sum is σ = 672380976. Its totient is φ = 221393412.

The previous prime is 445520401. The next prime is 445520407. The reversal of 445520402 is 204025544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (445520401) 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, 682988 + ... + 683639.

It is an arithmetic number, because the mean of its divisors is an integer number (84047622).

Almost surely, 2^445520402 is an apocalyptic number.

445520402 is a deficient number, since it is larger than the sum of its proper divisors (226860574).

445520402 is a wasteful number, since it uses less digits than its factorization.

445520402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366792.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 445520402 is about 21107.3542160073. The cubic root of 445520402 is about 763.7581640485.

Adding to 445520402 its reverse (204025544), we get a palindrome (649545946).

The spelling of 445520402 in words is "four hundred forty-five million, five hundred twenty thousand, four hundred two".