423431562 has 32 divisors (see below), whose sum is σ = 863058240. Its totient is φ = 138469760.

The previous prime is 423431551. The next prime is 423431653. The reversal of 423431562 is 265134324.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66928 + ... + 72980.

It is an arithmetic number, because the mean of its divisors is an integer number (26970570).

Almost surely, 2^423431562 is an apocalyptic number.

423431562 is an abundant number, since it is smaller than the sum of its proper divisors (439626678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423431562 is a wasteful number, since it uses less digits than its factorization.

423431562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6278.

The product of its digits is 17280, while the sum is 30.

The square root of 423431562 is about 20577.4527578124. The cubic root of 423431562 is about 750.9212749843.

Adding to 423431562 its reverse (265134324), we get a palindrome (688565886).

It can be divided in two parts, 423 and 431562, that added together give a triangular number (431985 = T₉₂₉).

The spelling of 423431562 in words is "four hundred twenty-three million, four hundred thirty-one thousand, five hundred sixty-two".