1445668694 has 32 divisors (see below), whose sum is σ = 2360524800. Its totient is φ = 661504320.

The previous prime is 1445668691. The next prime is 1445668711. The reversal of 1445668694 is 4968665441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445668691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1279922 + ... + 1281050.

It is an arithmetic number, because the mean of its divisors is an integer number (73766400).

Almost surely, 2^1445668694 is an apocalyptic number.

1445668694 is a deficient number, since it is larger than the sum of its proper divisors (914856106).

1445668694 is a wasteful number, since it uses less digits than its factorization.

1445668694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268.

The product of its digits is 4976640, while the sum is 53.

The square root of 1445668694 is about 38021.9501604008. The cubic root of 1445668694 is about 1130.7230848552.

The spelling of 1445668694 in words is "one billion, four hundred forty-five million, six hundred sixty-eight thousand, six hundred ninety-four".