445631012 has 12 divisors (see below), whose sum is σ = 793072560. Its totient is φ = 219038856.

The previous prime is 445630993. The next prime is 445631051. The reversal of 445631012 is 210136544.

It is a super-2 number, since 2×445631012² = 397173997712288288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943898 + ... + 944369.

It is an arithmetic number, because the mean of its divisors is an integer number (66089380).

Almost surely, 2^445631012 is an apocalyptic number.

It is an amenable number.

445631012 is a deficient number, since it is larger than the sum of its proper divisors (347441548).

445631012 is a wasteful number, since it uses less digits than its factorization.

445631012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888330 (or 1888328 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 445631012 is about 21109.9742302069. The cubic root of 445631012 is about 763.8213652696.

Adding to 445631012 its reverse (210136544), we get a palindrome (655767556).

The spelling of 445631012 in words is "four hundred forty-five million, six hundred thirty-one thousand, twelve".