450478428 has 24 divisors (see below), whose sum is σ = 1058682240. Its totient is φ = 149078640.

The previous prime is 450478423. The next prime is 450478447. The reversal of 450478428 is 824874054.

It is a self number, because there is not a number n which added to its sum of digits gives 450478428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450478421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133368 + ... + 136703.

It is an arithmetic number, because the mean of its divisors is an integer number (44111760).

Almost surely, 2^450478428 is an apocalyptic number.

It is an amenable number.

450478428 is an abundant number, since it is smaller than the sum of its proper divisors (608203812).

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

450478428 is a wasteful number, since it uses less digits than its factorization.

450478428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270217 (or 270215 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 42.

The square root of 450478428 is about 21224.4770960323. The cubic root of 450478428 is about 766.5809094584.

The spelling of 450478428 in words is "four hundred fifty million, four hundred seventy-eight thousand, four hundred twenty-eight".