1452123440 has 40 divisors (see below), whose sum is σ = 3381808848. Its totient is φ = 579882240.

The previous prime is 1452123437. The next prime is 1452123443. The reversal of 1452123440 is 443212541.

It is an interprime number because it is at equal distance from previous prime (1452123437) and next prime (1452123443).

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

It is not an unprimeable number, because it can be changed into a prime (1452123443) 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, 34235 + ... + 63845.

Almost surely, 2^1452123440 is an apocalyptic number.

1452123440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1452123440 is an abundant number, since it is smaller than the sum of its proper divisors (1929685408).

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

1452123440 is a wasteful number, since it uses less digits than its factorization.

1452123440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30237 (or 30231 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1452123440 is about 38106.7374620289. The cubic root of 1452123440 is about 1132.4034363849.

Adding to 1452123440 its reverse (443212541), we get a palindrome (1895335981).

The spelling of 1452123440 in words is "one billion, four hundred fifty-two million, one hundred twenty-three thousand, four hundred forty".