446830640 has 20 divisors (see below), whose sum is σ = 1038881424. Its totient is φ = 178732224.

The previous prime is 446830627. The next prime is 446830649. The reversal of 446830640 is 46038644.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-4 number, since 4×446830640⁴ (a number of 36 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 446830640.

It is not an unprimeable number, because it can be changed into a prime (446830649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2792612 + ... + 2792771.

Almost surely, 2^446830640 is an apocalyptic number.

446830640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

446830640 is an abundant number, since it is smaller than the sum of its proper divisors (592050784).

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

446830640 is a wasteful number, since it uses less digits than its factorization.

446830640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5585396 (or 5585390 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 446830640 is about 21138.3689058546. The cubic root of 446830640 is about 764.5061474317.

The spelling of 446830640 in words is "four hundred forty-six million, eight hundred thirty thousand, six hundred forty".