450004023 has 24 divisors (see below), whose sum is σ = 744926208. Its totient is φ = 256431312.

The previous prime is 450004019. The next prime is 450004067. The reversal of 450004023 is 320400054.

It is a happy number.

It is not a de Polignac number, because 450004023 - 2² = 450004019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 450003987 and 450004005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450004123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13390 + ... + 32852.

It is an arithmetic number, because the mean of its divisors is an integer number (31038592).

Almost surely, 2^450004023 is an apocalyptic number.

450004023 is a deficient number, since it is larger than the sum of its proper divisors (294922185).

450004023 is a wasteful number, since it uses less digits than its factorization.

450004023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19843 (or 19840 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 450004023 is about 21213.2982584039. The cubic root of 450004023 is about 766.3117159889.

Adding to 450004023 its reverse (320400054), we get a palindrome (770404077).

The spelling of 450004023 in words is "four hundred fifty million, four thousand, twenty-three".