1894441924 has 12 divisors (see below), whose sum is σ = 3316828284. Its totient is φ = 946776704.

The previous prime is 1894441919. The next prime is 1894441963. The reversal of 1894441924 is 4291444981.

It can be written as a sum of positive squares in 2 ways, for example, as 1189008324 + 705433600 = 34482^2 + 26560^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101377 + ... + 118600.

It is an arithmetic number, because the mean of its divisors is an integer number (276402357).

Almost surely, 2^1894441924 is an apocalyptic number.

It is an amenable number.

1894441924 is a deficient number, since it is larger than the sum of its proper divisors (1422386360).

1894441924 is a wasteful number, since it uses less digits than its factorization.

1894441924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222134 (or 222132 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 1894441924 is about 43525.1872368173. The cubic root of 1894441924 is about 1237.3534266288.

The spelling of 1894441924 in words is "one billion, eight hundred ninety-four million, four hundred forty-one thousand, nine hundred twenty-four".