1891442 has 16 divisors (see below), whose sum is σ = 3265920. Its totient is φ = 804768.

The previous prime is 1891433. The next prime is 1891447. The reversal of 1891442 is 2441981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1891447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1934 + ... + 2742.

It is an arithmetic number, because the mean of its divisors is an integer number (204120).

2^1891442 is an apocalyptic number.

1891442 is a deficient number, since it is larger than the sum of its proper divisors (1374478).

1891442 is a wasteful number, since it uses less digits than its factorization.

1891442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985.

The product of its digits is 2304, while the sum is 29.

The square root of 1891442 is about 1375.2970588204. The cubic root of 1891442 is about 123.6699948812.

The spelling of 1891442 in words is "one million, eight hundred ninety-one thousand, four hundred forty-two".