446744340 has 144 divisors (see below), whose sum is σ = 1630312320. Its totient is φ = 96733440.

The previous prime is 446744339. The next prime is 446744357. The reversal of 446744340 is 43447644.

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

It is a junction number, because it is equal to n+sod(n) for n = 446744295 and 446744304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14610 + ... + 33270.

Almost surely, 2^446744340 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 446744340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (815156160).

446744340 is an abundant number, since it is smaller than the sum of its proper divisors (1183567980).

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

446744340 is a wasteful number, since it uses less digits than its factorization.

446744340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18702 (or 18697 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 36.

The square root of 446744340 is about 21136.3274955703. The cubic root of 446744340 is about 764.4569258530.

The spelling of 446744340 in words is "four hundred forty-six million, seven hundred forty-four thousand, three hundred forty".