445091136 has 168 divisors, whose sum is σ = 1383670080. Its totient is φ = 123678720.

The previous prime is 445091107. The next prime is 445091137. The reversal of 445091136 is 631190544.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-2 number, since 2×445091136² = 396212238691540992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 445091097 and 445091106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445091137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5000980 + ... + 5001068.

Almost surely, 2^445091136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445091136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (691835040).

445091136 is an abundant number, since it is smaller than the sum of its proper divisors (938578944).

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

445091136 is an equidigital number, since it uses as much as digits as its factorization.

445091136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 445091136 is about 21097.1831295081. The cubic root of 445091136 is about 763.5127875069.

The spelling of 445091136 in words is "four hundred forty-five million, ninety-one thousand, one hundred thirty-six".