1001453420 has 96 divisors (see below), whose sum is σ = 2348752896. Its totient is φ = 355622400.

The previous prime is 1001453399. The next prime is 1001453429. The reversal of 1001453420 is 243541001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1001453392 and 1001453401.

It is not an unprimeable number, because it can be changed into a prime (1001453429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2039375 + ... + 2039865.

It is an arithmetic number, because the mean of its divisors is an integer number (24466176).

Almost surely, 2^1001453420 is an apocalyptic number.

1001453420 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 1001453420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1174376448).

1001453420 is an abundant number, since it is smaller than the sum of its proper divisors (1347299476).

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

1001453420 is a wasteful number, since it uses less digits than its factorization.

1001453420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1001453420 is about 31645.7488456191. The cubic root of 1001453420 is about 1000.4842388083.

Adding to 1001453420 its reverse (243541001), we get a palindrome (1244994421).

The spelling of 1001453420 in words is "one billion, one million, four hundred fifty-three thousand, four hundred twenty".