654236432 has 40 divisors (see below), whose sum is σ = 1345449600. Its totient is φ = 307118592.

The previous prime is 654236423. The next prime is 654236437. The reversal of 654236432 is 234632456.

It is a junction number, because it is equal to n+sod(n) for n = 654236392 and 654236401.

It is not an unprimeable number, because it can be changed into a prime (654236437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116669 + ... + 122147.

It is an arithmetic number, because the mean of its divisors is an integer number (33636240).

Almost surely, 2^654236432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654236432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672724800).

654236432 is an abundant number, since it is smaller than the sum of its proper divisors (691213168).

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

654236432 is a wasteful number, since it uses less digits than its factorization.

654236432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5943 (or 5937 counting only the distinct ones).

The product of its digits is 103680, while the sum is 35.

The square root of 654236432 is about 25578.0458987781. The cubic root of 654236432 is about 868.1169613108.

Adding to 654236432 its reverse (234632456), we get a palindrome (888868888).

The spelling of 654236432 in words is "six hundred fifty-four million, two hundred thirty-six thousand, four hundred thirty-two".