445756406 has 4 divisors (see below), whose sum is σ = 668634612. Its totient is φ = 222878202.

The previous prime is 445756393. The next prime is 445756417. The reversal of 445756406 is 604657544.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111439100 + ... + 111439103.

It is an arithmetic number, because the mean of its divisors is an integer number (167158653).

Almost surely, 2^445756406 is an apocalyptic number.

445756406 is a deficient number, since it is larger than the sum of its proper divisors (222878206).

445756406 is a wasteful number, since it uses less digits than its factorization.

445756406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222878205.

The product of its (nonzero) digits is 403200, while the sum is 41.

The square root of 445756406 is about 21112.9440391434. The cubic root of 445756406 is about 763.8930012431.

The spelling of 445756406 in words is "four hundred forty-five million, seven hundred fifty-six thousand, four hundred six".