445045630 has 32 divisors (see below), whose sum is σ = 849642048. Its totient is φ = 167481600.

The previous prime is 445045621. The next prime is 445045633. The reversal of 445045630 is 36540544.

It is a super-2 number, since 2×445045630² = 396131225564193800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 445045592 and 445045601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445045633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1831 + ... + 29890.

It is an arithmetic number, because the mean of its divisors is an integer number (26551314).

Almost surely, 2^445045630 is an apocalyptic number.

445045630 is a deficient number, since it is larger than the sum of its proper divisors (404596418).

445045630 is a wasteful number, since it uses less digits than its factorization.

445045630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31812.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 445045630 is about 21096.1046167296. The cubic root of 445045630 is about 763.4867661716.

The spelling of 445045630 in words is "four hundred forty-five million, forty-five thousand, six hundred thirty".