445662420 has 48 divisors (see below), whose sum is σ = 1426121088. Its totient is φ = 101865600.

The previous prime is 445662419. The next prime is 445662433. The reversal of 445662420 is 24266544.

It is a super-2 number, since 2×445662420² = 397229985200512800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530131 + ... + 530970.

It is an arithmetic number, because the mean of its divisors is an integer number (29710856).

Almost surely, 2^445662420 is an apocalyptic number.

It is an amenable number.

445662420 is an abundant number, since it is smaller than the sum of its proper divisors (980458668).

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

445662420 is a wasteful number, since it uses less digits than its factorization.

445662420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061120 (or 1061118 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 445662420 is about 21110.7181308453. The cubic root of 445662420 is about 763.8393095158.

The spelling of 445662420 in words is "four hundred forty-five million, six hundred sixty-two thousand, four hundred twenty".