450400023 has 24 divisors (see below), whose sum is σ = 711075456. Its totient is φ = 273484800.

The previous prime is 450400009. The next prime is 450400037. The reversal of 450400023 is 320004054.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (450400009) and next prime (450400037).

It is not a de Polignac number, because 450400023 - 2⁵ = 450399991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 450399969 and 450400005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450400523) 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, 42738 + ... + 52223.

It is an arithmetic number, because the mean of its divisors is an integer number (29628144).

Almost surely, 2^450400023 is an apocalyptic number.

450400023 is a deficient number, since it is larger than the sum of its proper divisors (260675433).

450400023 is a wasteful number, since it uses less digits than its factorization.

450400023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95015 (or 95012 counting only the distinct ones).

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

The square root of 450400023 is about 21222.6299736861. The cubic root of 450400023 is about 766.5364328459.

Adding to 450400023 its reverse (320004054), we get a palindrome (770404077).

The spelling of 450400023 in words is "four hundred fifty million, four hundred thousand, twenty-three".