445361616 has 60 divisors (see below), whose sum is σ = 1424453472. Its totient is φ = 127245888.

The previous prime is 445361611. The next prime is 445361647. The reversal of 445361616 is 616163544.

It is a happy number.

445361616 is a `hidden beast` number, since 4 + 4 + 5 + 36 + 1 + 616 = 666.

It is a super-2 number, since 2×445361616² = 396693938012262912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445361611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219906 + ... + 221921.

Almost surely, 2^445361616 is an apocalyptic number.

It is an amenable number.

445361616 is an abundant number, since it is smaller than the sum of its proper divisors (979091856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445361616 is a wasteful number, since it uses less digits than its factorization.

445361616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441848 (or 441839 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 445361616 is about 21103.5924903795. The cubic root of 445361616 is about 763.6674173519.

The spelling of 445361616 in words is "four hundred forty-five million, three hundred sixty-one thousand, six hundred sixteen".