464540431 has 2 divisors, whose sum is σ = 464540432. Its totient is φ = 464540430.

The previous prime is 464540387. The next prime is 464540441. The reversal of 464540431 is 134045464.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 464540431 - 2⁹ = 464539919 is a prime.

It is a super-2 number, since 2×464540431² = 431595624067331522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 464540393 and 464540402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (464540441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232270215 + 232270216.

It is an arithmetic number, because the mean of its divisors is an integer number (232270216).

Almost surely, 2^464540431 is an apocalyptic number.

464540431 is a deficient number, since it is larger than the sum of its proper divisors (1).

464540431 is an equidigital number, since it uses as much as digits as its factorization.

464540431 is an odious number, because the sum of its binary digits is odd.

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

The square root of 464540431 is about 21553.2000176308. The cubic root of 464540431 is about 774.4757778500.

Adding to 464540431 its reverse (134045464), we get a palindrome (598585895).

The spelling of 464540431 in words is "four hundred sixty-four million, five hundred forty thousand, four hundred thirty-one".