445505406 has 16 divisors (see below), whose sum is σ = 896479104. Its totient is φ = 147590424.

The previous prime is 445505393. The next prime is 445505441. The reversal of 445505406 is 604505544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226786 + ... + 228741.

It is an arithmetic number, because the mean of its divisors is an integer number (56029944).

Almost surely, 2^445505406 is an apocalyptic number.

445505406 is an abundant number, since it is smaller than the sum of its proper divisors (450973698).

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

445505406 is a wasteful number, since it uses less digits than its factorization.

445505406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455695.

The product of its (nonzero) digits is 48000, while the sum is 33.

The square root of 445505406 is about 21106.9989813806. The cubic root of 445505406 is about 763.7495947096.

The spelling of 445505406 in words is "four hundred forty-five million, five hundred five thousand, four hundred six".