612540432 has 120 divisors (see below), whose sum is σ = 1968522816. Its totient is φ = 174175488.

The previous prime is 612540403. The next prime is 612540437. The reversal of 612540432 is 234045216.

612540432 is a `hidden beast` number, since 612 + 5 + 4 + 0 + 43 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 612540396 and 612540405.

It is not an unprimeable number, because it can be changed into a prime (612540437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227478 + ... + 230154.

Almost surely, 2^612540432 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 612540432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (984261408).

612540432 is an abundant number, since it is smaller than the sum of its proper divisors (1355982384).

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

612540432 is a wasteful number, since it uses less digits than its factorization.

612540432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925 (or 2916 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 612540432 is about 24749.5541778029. The cubic root of 612540432 is about 849.2683124368.

Adding to 612540432 its reverse (234045216), we get a palindrome (846585648).

The spelling of 612540432 in words is "six hundred twelve million, five hundred forty thousand, four hundred thirty-two".