1421774 has 4 divisors (see below), whose sum is σ = 2132664. Its totient is φ = 710886.

The previous prime is 1421773. The next prime is 1421779. The reversal of 1421774 is 4771241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4771241 = 31 ⋅153911.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355442 + ... + 355445.

It is an arithmetic number, because the mean of its divisors is an integer number (533166).

2^1421774 is an apocalyptic number.

1421774 is a deficient number, since it is larger than the sum of its proper divisors (710890).

1421774 is an equidigital number, since it uses as much as digits as its factorization.

1421774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710889.

The product of its digits is 1568, while the sum is 26.

The square root of 1421774 is about 1192.3816503117. The cubic root of 1421774 is about 112.4458735511.

The spelling of 1421774 in words is "one million, four hundred twenty-one thousand, seven hundred seventy-four".