1452131340 has 48 divisors (see below), whose sum is σ = 4435603200. Its totient is φ = 352031680.

The previous prime is 1452131327. The next prime is 1452131353. The reversal of 1452131340 is 431312541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1452131327) and next prime (1452131353).

It is a super-2 number, since 2×1452131340² = 4217370857220391200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1452131340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1099440 + ... + 1100759.

It is an arithmetic number, because the mean of its divisors is an integer number (92408400).

Almost surely, 2^1452131340 is an apocalyptic number.

1452131340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1452131340 is an abundant number, since it is smaller than the sum of its proper divisors (2983471860).

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

1452131340 is a wasteful number, since it uses less digits than its factorization.

1452131340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200222 (or 2200220 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1452131340 is about 38106.8411180985. The cubic root of 1452131340 is about 1132.4054899227.

Adding to 1452131340 its reverse (431312541), we get a palindrome (1883443881).

The spelling of 1452131340 in words is "one billion, four hundred fifty-two million, one hundred thirty-one thousand, three hundred forty".