1452212420 has 24 divisors (see below), whose sum is σ = 3229037784. Its totient is φ = 546715136.

The previous prime is 1452212417. The next prime is 1452212423. The reversal of 1452212420 is 242122541.

It is an interprime number because it is at equal distance from previous prime (1452212417) and next prime (1452212423).

It can be written as a sum of positive squares in 4 ways, for example, as 349839616 + 1102372804 = 18704^2 + 33202^2 .

It is not an unprimeable number, because it can be changed into a prime (1452212423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2135267 + ... + 2135946.

It is an arithmetic number, because the mean of its divisors is an integer number (134543241).

Almost surely, 2^1452212420 is an apocalyptic number.

1452212420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1452212420 is an abundant number, since it is smaller than the sum of its proper divisors (1776825364).

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

1452212420 is a wasteful number, since it uses less digits than its factorization.

1452212420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4271239 (or 4271237 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1452212420 is about 38107.9049542218. The cubic root of 1452212420 is about 1132.4265655480.

Adding to 1452212420 its reverse (242122541), we get a palindrome (1694334961).

The spelling of 1452212420 in words is "one billion, four hundred fifty-two million, two hundred twelve thousand, four hundred twenty".