1455345440 has 24 divisors (see below), whose sum is σ = 3438253980. Its totient is φ = 582138112.

The previous prime is 1455345421. The next prime is 1455345467. The reversal of 1455345440 is 445435541.

It can be written as a sum of positive squares in 2 ways, for example, as 1292833936 + 162511504 = 35956^2 + 12748^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1455345440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4547795 + ... + 4548114.

Almost surely, 2^1455345440 is an apocalyptic number.

1455345440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1455345440 is an abundant number, since it is smaller than the sum of its proper divisors (1982908540).

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

1455345440 is an equidigital number, since it uses as much as digits as its factorization.

1455345440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9095924 (or 9095916 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The square root of 1455345440 is about 38148.9900259496. The cubic root of 1455345440 is about 1133.2403506953.

The spelling of 1455345440 in words is "one billion, four hundred fifty-five million, three hundred forty-five thousand, four hundred forty".