1453040 has 40 divisors (see below), whose sum is σ = 3468528. Its totient is φ = 565760.

The previous prime is 1453037. The next prime is 1453043. The reversal of 1453040 is 403541.

It is an interprime number because it is at equal distance from previous prime (1453037) and next prime (1453043).

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1453040² = 4222650483200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1453043) 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, 3059 + ... + 3501.

2^1453040 is an apocalyptic number.

1453040 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 1453040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1734264).

1453040 is an abundant number, since it is smaller than the sum of its proper divisors (2015488).

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

1453040 is a wasteful number, since it uses less digits than its factorization.

1453040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1453040 is about 1205.4210882509. The cubic root of 1453040 is about 113.2641638677.

Adding to 1453040 its reverse (403541), we get a palindrome (1856581).

The spelling of 1453040 in words is "one million, four hundred fifty-three thousand, forty".