450005390 has 16 divisors (see below), whose sum is σ = 823739760. Its totient is φ = 176951040.

The previous prime is 450005389. The next prime is 450005417. The reversal of 450005390 is 93500054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380771 + ... + 381950.

It is an arithmetic number, because the mean of its divisors is an integer number (51483735).

Almost surely, 2^450005390 is an apocalyptic number.

450005390 is a deficient number, since it is larger than the sum of its proper divisors (373734370).

450005390 is a wasteful number, since it uses less digits than its factorization.

450005390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762787.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 450005390 is about 21213.3304787344. The cubic root of 450005390 is about 766.3124919427.

The spelling of 450005390 in words is "four hundred fifty million, five thousand, three hundred ninety".