1421144 has 16 divisors (see below), whose sum is σ = 2677320. Its totient is φ = 707200.

The previous prime is 1421141. The next prime is 1421153. The reversal of 1421144 is 4411241.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421141) 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, 2987 + ... + 3429.

2^1421144 is an apocalyptic number.

It is an amenable number.

1421144 is a deficient number, since it is larger than the sum of its proper divisors (1256176).

1421144 is a wasteful number, since it uses less digits than its factorization.

1421144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850 (or 846 counting only the distinct ones).

The product of its digits is 128, while the sum is 17.

The square root of 1421144 is about 1192.1174438787. The cubic root of 1421144 is about 112.4292625271.

Adding to 1421144 its reverse (4411241), we get a palindrome (5832385).

The spelling of 1421144 in words is "one million, four hundred twenty-one thousand, one hundred forty-four".