445215672 has 96 divisors (see below), whose sum is σ = 1351050480. Its totient is φ = 131258880.

The previous prime is 445215629. The next prime is 445215689. The reversal of 445215672 is 276512544.

It is a happy number.

445215672 is a `hidden beast` number, since 44 + 52 + 1 + 567 + 2 = 666.

It is a super-3 number, since 3×445215672³ (a number of 27 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21708 + ... + 36900.

Almost surely, 2^445215672 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 445215672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (675525240).

445215672 is an abundant number, since it is smaller than the sum of its proper divisors (905834808).

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

445215672 is a wasteful number, since it uses less digits than its factorization.

445215672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15253 (or 15246 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 445215672 is about 21100.1344071549. The cubic root of 445215672 is about 763.5839908732.

The spelling of 445215672 in words is "four hundred forty-five million, two hundred fifteen thousand, six hundred seventy-two".