465440431 has 4 divisors (see below), whose sum is σ = 473070664. Its totient is φ = 457810200.

The previous prime is 465440419. The next prime is 465440441. The reversal of 465440431 is 134044564.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 465440431 - 2¹⁷ = 465309359 is a prime.

It is a super-2 number, since 2×465440431² = 433269589618931522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 465440393 and 465440402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (465440441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3815025 + ... + 3815146.

It is an arithmetic number, because the mean of its divisors is an integer number (118267666).

Almost surely, 2^465440431 is an apocalyptic number.

465440431 is a deficient number, since it is larger than the sum of its proper divisors (7630233).

465440431 is an equidigital number, since it uses as much as digits as its factorization.

465440431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7630232.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 465440431 is about 21574.0684851050. The cubic root of 465440431 is about 774.9756113033.

Adding to 465440431 its reverse (134044564), we get a palindrome (599484995).

It can be divided in two parts, 465 and 440431, that added together give a square (440896 = 664²).

The spelling of 465440431 in words is "four hundred sixty-five million, four hundred forty thousand, four hundred thirty-one".