1450840 has 64 divisors (see below), whose sum is σ = 3628800. Its totient is φ = 519552.

The previous prime is 1450819. The next prime is 1450847. The reversal of 1450840 is 480541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1450847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17439 + ... + 17521.

It is an arithmetic number, because the mean of its divisors is an integer number (56700).

2^1450840 is an apocalyptic number.

1450840 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 1450840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1814400).

1450840 is an abundant number, since it is smaller than the sum of its proper divisors (2177960).

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

1450840 is a wasteful number, since it uses less digits than its factorization.

1450840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1450840 is about 1204.5081983947. The cubic root of 1450840 is about 113.2069718140.

Subtracting from 1450840 its reverse (480541), we obtain a cube (970299 = 99³).

The spelling of 1450840 in words is "one million, four hundred fifty thousand, eight hundred forty".