1790894645 has 16 divisors (see below), whose sum is σ = 2260265472. Its totient is φ = 1360332480.

The previous prime is 1790894641. The next prime is 1790894711. The reversal of 1790894645 is 5464980971.

It is not a de Polignac number, because 1790894645 - 2² = 1790894641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1790894641) 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, 100787 + ... + 117216.

It is an arithmetic number, because the mean of its divisors is an integer number (141266592).

Almost surely, 2^1790894645 is an apocalyptic number.

It is an amenable number.

1790894645 is a deficient number, since it is larger than the sum of its proper divisors (469370827).

1790894645 is a wasteful number, since it uses less digits than its factorization.

1790894645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218092.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 1790894645 is about 42318.9631843693. The cubic root of 1790894645 is about 1214.3857971455.

The spelling of 1790894645 in words is "one billion, seven hundred ninety million, eight hundred ninety-four thousand, six hundred forty-five".