450644540 has 48 divisors (see below), whose sum is σ = 963144000. Its totient is φ = 177088512.

The previous prime is 450644503. The next prime is 450644563. The reversal of 450644540 is 45446054.

It is a junction number, because it is equal to n+sod(n) for n = 450644497 and 450644506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288281 + ... + 289839.

It is an arithmetic number, because the mean of its divisors is an integer number (20065500).

Almost surely, 2^450644540 is an apocalyptic number.

It is an amenable number.

450644540 is an abundant number, since it is smaller than the sum of its proper divisors (512499460).

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

450644540 is a wasteful number, since it uses less digits than its factorization.

450644540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814 (or 1812 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 450644540 is about 21228.3899530793. The cubic root of 450644540 is about 766.6751223600.

The spelling of 450644540 in words is "four hundred fifty million, six hundred forty-four thousand, five hundred forty".