415640223431 has 4 divisors (see below), whose sum is σ = 419453436600. Its totient is φ = 411827010264.

The previous prime is 415640223421. The next prime is 415640223463. The reversal of 415640223431 is 134322046514.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-415640223431 is a prime.

It is a super-2 number, since 2×415640223431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 415640223391 and 415640223400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (415640223421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1906606421 + ... + 1906606638.

It is an arithmetic number, because the mean of its divisors is an integer number (104863359150).

Almost surely, 2^415640223431 is an apocalyptic number.

415640223431 is a deficient number, since it is larger than the sum of its proper divisors (3813213169).

415640223431 is a wasteful number, since it uses less digits than its factorization.

415640223431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3813213168.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 415640223431 its reverse (134322046514), we get a palindrome (549962269945).

The spelling of 415640223431 in words is "four hundred fifteen billion, six hundred forty million, two hundred twenty-three thousand, four hundred thirty-one".