1456489540 has 24 divisors (see below), whose sum is σ = 3336685632. Its totient is φ = 529632480.

The previous prime is 1456489537. The next prime is 1456489543. The reversal of 1456489540 is 459846541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1456489537) and next prime (1456489543).

It is not an unprimeable number, because it can be changed into a prime (1456489543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3309984 + ... + 3310423.

It is an arithmetic number, because the mean of its divisors is an integer number (139028568).

Almost surely, 2^1456489540 is an apocalyptic number.

1456489540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1456489540 is an abundant number, since it is smaller than the sum of its proper divisors (1880196092).

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

1456489540 is a wasteful number, since it uses less digits than its factorization.

1456489540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6620427 (or 6620425 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 1456489540 is about 38163.9822345625. The cubic root of 1456489540 is about 1133.5372334022.

The spelling of 1456489540 in words is "one billion, four hundred fifty-six million, four hundred eighty-nine thousand, five hundred forty".