450309538 has 64 divisors (see below), whose sum is σ = 838656000. Its totient is φ = 177059520.

The previous prime is 450309533. The next prime is 450309539. The reversal of 450309538 is 835903054.

It is a junction number, because it is equal to n+sod(n) for n = 450309497 and 450309506.

It is not an unprimeable number, because it can be changed into a prime (450309533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2262763 + ... + 2262961.

It is an arithmetic number, because the mean of its divisors is an integer number (13104000).

Almost surely, 2^450309538 is an apocalyptic number.

450309538 is a deficient number, since it is larger than the sum of its proper divisors (388346462).

450309538 is a wasteful number, since it uses less digits than its factorization.

450309538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 450309538 is about 21220.4980620154. The cubic root of 450309538 is about 766.4850972250.

The spelling of 450309538 in words is "four hundred fifty million, three hundred nine thousand, five hundred thirty-eight".