450319028 has 6 divisors (see below), whose sum is σ = 788058306. Its totient is φ = 225159512.

The previous prime is 450319021. The next prime is 450319049. The reversal of 450319028 is 820913054.

It can be written as a sum of positive squares in only one way, i.e., 448931344 + 1387684 = 21188^2 + 1178^2 .

It is a junction number, because it is equal to n+sod(n) for n = 450318985 and 450319003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450319021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56289875 + ... + 56289882.

It is an arithmetic number, because the mean of its divisors is an integer number (131343051).

Almost surely, 2^450319028 is an apocalyptic number.

It is an amenable number.

450319028 is a deficient number, since it is larger than the sum of its proper divisors (337739278).

450319028 is a wasteful number, since it uses less digits than its factorization.

450319028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112579761 (or 112579759 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 450319028 is about 21220.7216653911. The cubic root of 450319028 is about 766.4904815898.

The spelling of 450319028 in words is "four hundred fifty million, three hundred nineteen thousand, twenty-eight".