424545431 has 4 divisors (see below), whose sum is σ = 443003952. Its totient is φ = 406086912.

The previous prime is 424545419. The next prime is 424545449. The reversal of 424545431 is 134545424.

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 424545431 - 2²⁶ = 357436567 is a prime.

It is a super-2 number, since 2×424545431² = 360477645965951522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424545461) 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, 9229226 + ... + 9229271.

It is an arithmetic number, because the mean of its divisors is an integer number (110750988).

Almost surely, 2^424545431 is an apocalyptic number.

424545431 is a deficient number, since it is larger than the sum of its proper divisors (18458521).

424545431 is a wasteful number, since it uses less digits than its factorization.

424545431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18458520.

The product of its digits is 38400, while the sum is 32.

The square root of 424545431 is about 20604.5002608653. The cubic root of 424545431 is about 751.5791503416.

The spelling of 424545431 in words is "four hundred twenty-four million, five hundred forty-five thousand, four hundred thirty-one".