1894649692 has 48 divisors (see below), whose sum is σ = 3813062400. Its totient is φ = 817044480.

The previous prime is 1894649689. The next prime is 1894649693. The reversal of 1894649692 is 2969464981.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1894649693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26484 + ... + 67012.

It is an arithmetic number, because the mean of its divisors is an integer number (79438800).

Almost surely, 2^1894649692 is an apocalyptic number.

It is an amenable number.

1894649692 is an abundant number, since it is smaller than the sum of its proper divisors (1918412708).

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

1894649692 is a wasteful number, since it uses less digits than its factorization.

1894649692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40606 (or 40604 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 58.

The square root of 1894649692 is about 43527.5739273394. The cubic root of 1894649692 is about 1237.3986594835.

The spelling of 1894649692 in words is "one billion, eight hundred ninety-four million, six hundred forty-nine thousand, six hundred ninety-two".