1445557794 has 16 divisors (see below), whose sum is σ = 2894476032. Its totient is φ = 481292528.

The previous prime is 1445557783. The next prime is 1445557831. The reversal of 1445557794 is 4977555441.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134409 + ... + 144764.

It is an arithmetic number, because the mean of its divisors is an integer number (180904752).

Almost surely, 2^1445557794 is an apocalyptic number.

1445557794 is an abundant number, since it is smaller than the sum of its proper divisors (1448918238).

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

1445557794 is a wasteful number, since it uses less digits than its factorization.

1445557794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280041.

The product of its digits is 3528000, while the sum is 51.

The square root of 1445557794 is about 38020.4917643105. The cubic root of 1445557794 is about 1130.6941708084.

The spelling of 1445557794 in words is "one billion, four hundred forty-five million, five hundred fifty-seven thousand, seven hundred ninety-four".