612243072 has 192 divisors, whose sum is σ = 2101656960. Its totient is φ = 167270400.

The previous prime is 612243067. The next prime is 612243077. The reversal of 612243072 is 270342216.

612243072 is a `hidden beast` number, since 612 + 2 + 43 + 0 + 7 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (612243067) and next prime (612243077).

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (612243077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183822 + ... + 187122.

It is an arithmetic number, because the mean of its divisors is an integer number (10946130).

Almost surely, 2^612243072 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 612243072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1050828480).

612243072 is an abundant number, since it is smaller than the sum of its proper divisors (1489413888).

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

612243072 is a wasteful number, since it uses less digits than its factorization.

612243072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351 (or 3336 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 612243072 is about 24743.5460676112. The cubic root of 612243072 is about 849.1308633866.

Adding to 612243072 its reverse (270342216), we get a palindrome (882585288).

It can be divided in two parts, 6122 and 43072, that added together give a palindrome (49194).

The spelling of 612243072 in words is "six hundred twelve million, two hundred forty-three thousand, seventy-two".