1453140 has 144 divisors (see below), whose sum is σ = 5136768. Its totient is φ = 342144.

The previous prime is 1453129. The next prime is 1453141. The reversal of 1453140 is 413541.

It is a happy number.

It is a super-2 number, since 2×1453140² = 4223231719200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1453141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63169 + ... + 63191.

It is an arithmetic number, because the mean of its divisors is an integer number (35672).

2^1453140 is an apocalyptic number.

1453140 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 1453140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2568384).

1453140 is an abundant number, since it is smaller than the sum of its proper divisors (3683628).

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

1453140 is a wasteful number, since it uses less digits than its factorization.

1453140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1453140 is about 1205.4625668182. The cubic root of 1453140 is about 113.2667621345.

Adding to 1453140 its reverse (413541), we get a palindrome (1866681).

The spelling of 1453140 in words is "one million, four hundred fifty-three thousand, one hundred forty".