612278072 has 64 divisors (see below), whose sum is σ = 1352514240. Its totient is φ = 254361600.

The previous prime is 612278027. The next prime is 612278077. The reversal of 612278072 is 270872216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612278077) 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 15 ways as a sum of consecutive naturals, for example, 954872 + ... + 955512.

It is an arithmetic number, because the mean of its divisors is an integer number (21133035).

Almost surely, 2^612278072 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 612278072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (676257120).

612278072 is an abundant number, since it is smaller than the sum of its proper divisors (740236168).

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

612278072 is a wasteful number, since it uses less digits than its factorization.

612278072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152 (or 1148 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 612278072 is about 24744.2533126381. The cubic root of 612278072 is about 849.1470437869.

The spelling of 612278072 in words is "six hundred twelve million, two hundred seventy-eight thousand, seventy-two".