612261772 has 12 divisors (see below), whose sum is σ = 1072317960. Its totient is φ = 305885216.

The previous prime is 612261763. The next prime is 612261773. The reversal of 612261772 is 277162216.

It is not an unprimeable number, because it can be changed into a prime (612261773) 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 3 ways as a sum of consecutive naturals, for example, 55753 + ... + 65824.

It is an arithmetic number, because the mean of its divisors is an integer number (89359830).

Almost surely, 2^612261772 is an apocalyptic number.

It is an amenable number.

612261772 is a deficient number, since it is larger than the sum of its proper divisors (460056188).

612261772 is a wasteful number, since it uses less digits than its factorization.

612261772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122840 (or 122838 counting only the distinct ones).

The product of its digits is 14112, while the sum is 34.

The square root of 612261772 is about 24743.9239410406. The cubic root of 612261772 is about 849.1395084201.

The spelling of 612261772 in words is "six hundred twelve million, two hundred sixty-one thousand, seven hundred seventy-two".