1445090646 has 16 divisors (see below), whose sum is σ = 2892754800. Its totient is φ = 481267968.

The previous prime is 1445090641. The next prime is 1445090741. The reversal of 1445090646 is 6460905441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445090641) 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, 99891 + ... + 113438.

It is an arithmetic number, because the mean of its divisors is an integer number (180797175).

Almost surely, 2^1445090646 is an apocalyptic number.

1445090646 is an abundant number, since it is smaller than the sum of its proper divisors (1447664154).

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

1445090646 is a wasteful number, since it uses less digits than its factorization.

1445090646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214463.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 1445090646 is about 38014.3478965508. The cubic root of 1445090646 is about 1130.5723589074.

The spelling of 1445090646 in words is "one billion, four hundred forty-five million, ninety thousand, six hundred forty-six".