1424140 has 24 divisors (see below), whose sum is σ = 3088512. Its totient is φ = 551040.

The previous prime is 1424123. The next prime is 1424149. The reversal of 1424140 is 414241.

It is not an unprimeable number, because it can be changed into a prime (1424149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529 + ... + 1768.

It is an arithmetic number, because the mean of its divisors is an integer number (128688).

2^1424140 is an apocalyptic number.

1424140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1424140 is an abundant number, since it is smaller than the sum of its proper divisors (1664372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1424140 is a wasteful number, since it uses less digits than its factorization.

1424140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337 (or 2335 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1424140 is about 1193.3733699057. The cubic root of 1424140 is about 112.5082133921.

Adding to 1424140 its reverse (414241), we get a palindrome (1838381).

The spelling of 1424140 in words is "one million, four hundred twenty-four thousand, one hundred forty".