1452247440 has 160 divisors (see below), whose sum is σ = 5447865600. Its totient is φ = 312410112.

The previous prime is 1452247427. The next prime is 1452247451. The reversal of 1452247440 is 447422541.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3136 + ... + 53984.

It is an arithmetic number, because the mean of its divisors is an integer number (34049160).

Almost surely, 2^1452247440 is an apocalyptic number.

1452247440 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 1452247440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2723932800).

1452247440 is an abundant number, since it is smaller than the sum of its proper divisors (3995618160).

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

1452247440 is a wasteful number, since it uses less digits than its factorization.

1452247440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50889 (or 50883 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 33.

The square root of 1452247440 is about 38108.3644361707. The cubic root of 1452247440 is about 1132.4356682704.

Adding to 1452247440 its reverse (447422541), we get a palindrome (1899669981).

The spelling of 1452247440 in words is "one billion, four hundred fifty-two million, two hundred forty-seven thousand, four hundred forty".