1920194 has 8 divisors (see below), whose sum is σ = 2950668. Its totient is φ = 936640.

The previous prime is 1920187. The next prime is 1920199. The reversal of 1920194 is 4910291.

It can be written as a sum of positive squares in 2 ways, for example, as 1729225 + 190969 = 1315^2 + 437^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1920199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11627 + ... + 11790.

2^1920194 is an apocalyptic number.

1920194 is a deficient number, since it is larger than the sum of its proper divisors (1030474).

1920194 is a wasteful number, since it uses less digits than its factorization.

1920194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23460.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 1920194 is about 1385.7106480070. The cubic root of 1920194 is about 124.2934862299.

The spelling of 1920194 in words is "one million, nine hundred twenty thousand, one hundred ninety-four".