445561436 has 12 divisors (see below), whose sum is σ = 779891112. Its totient is φ = 222735408.

The previous prime is 445561433. The next prime is 445561439. The reversal of 445561436 is 634165544.

It is an interprime number because it is at equal distance from previous prime (445561433) and next prime (445561439).

It is a self number, because there is not a number n which added to its sum of digits gives 445561436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445561433) 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, 21131 + ... + 36573.

It is an arithmetic number, because the mean of its divisors is an integer number (64990926).

Almost surely, 2^445561436 is an apocalyptic number.

It is an amenable number.

445561436 is a deficient number, since it is larger than the sum of its proper divisors (334329676).

445561436 is a wasteful number, since it uses less digits than its factorization.

445561436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22660 (or 22658 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

The square root of 445561436 is about 21108.3262245020. The cubic root of 445561436 is about 763.7816116020.

The spelling of 445561436 in words is "four hundred forty-five million, five hundred sixty-one thousand, four hundred thirty-six".