423436431 has 8 divisors (see below), whose sum is σ = 615907584. Its totient is φ = 256628120.

The previous prime is 423436423. The next prime is 423436439. The reversal of 423436431 is 134634324.

It is an interprime number because it is at equal distance from previous prime (423436423) and next prime (423436439).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423436431 - 2³ = 423436423 is a prime.

It is a super-2 number, since 2×423436431² = 358596822196035522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423436439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6415671 + ... + 6415736.

It is an arithmetic number, because the mean of its divisors is an integer number (76988448).

Almost surely, 2^423436431 is an apocalyptic number.

423436431 is a deficient number, since it is larger than the sum of its proper divisors (192471153).

423436431 is a wasteful number, since it uses less digits than its factorization.

423436431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12831421.

The product of its digits is 20736, while the sum is 30.

The square root of 423436431 is about 20577.5710665763. The cubic root of 423436431 is about 750.9241532311.

The spelling of 423436431 in words is "four hundred twenty-three million, four hundred thirty-six thousand, four hundred thirty-one".