445010640 has 40 divisors (see below), whose sum is σ = 1379533728. Its totient is φ = 118669440.

The previous prime is 445010593. The next prime is 445010641. The reversal of 445010640 is 46010544.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 445010640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445010641) 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, 926866 + ... + 927345.

Almost surely, 2^445010640 is an apocalyptic number.

445010640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

445010640 is an abundant number, since it is smaller than the sum of its proper divisors (934523088).

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

445010640 is a wasteful number, since it uses less digits than its factorization.

445010640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854227 (or 1854221 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 445010640 is about 21095.2753004079. The cubic root of 445010640 is about 763.4667569109.

The spelling of 445010640 in words is "four hundred forty-five million, ten thousand, six hundred forty".