445940 has 24 divisors (see below), whose sum is σ = 1022112. Its totient is φ = 162080.

The previous prime is 445937. The next prime is 445943. The reversal of 445940 is 49544.

445940 = 23² + 24² + ... + 110².

It is an interprime number because it is at equal distance from previous prime (445937) and next prime (445943).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 445940.

It is not an unprimeable number, because it can be changed into a prime (445943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 794 + ... + 1233.

It is an arithmetic number, because the mean of its divisors is an integer number (42588).

2⁴⁴⁵⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

445940 is an abundant number, since it is smaller than the sum of its proper divisors (576172).

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

445940 is a wasteful number, since it uses less digits than its factorization.

445940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047 (or 2045 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 445940 is about 667.7873913155. The cubic root of 445940 is about 76.3997861895.

The spelling of 445940 in words is "four hundred forty-five thousand, nine hundred forty".