1434840 has 64 divisors (see below), whose sum is σ = 4700160. Its totient is φ = 347520.

The previous prime is 1434827. The next prime is 1434841. The reversal of 1434840 is 484341.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1434840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1434841) 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 15 ways as a sum of consecutive naturals, for example, 777 + ... + 1863.

It is an arithmetic number, because the mean of its divisors is an integer number (73440).

2^1434840 is an apocalyptic number.

1434840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1434840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2350080).

1434840 is an abundant number, since it is smaller than the sum of its proper divisors (3265320).

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

1434840 is a wasteful number, since it uses less digits than its factorization.

1434840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112 (or 1108 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1434840 is about 1197.8480704998. The cubic root of 1434840 is about 112.7892802046.

The spelling of 1434840 in words is "one million, four hundred thirty-four thousand, eight hundred forty".