612231284 has 18 divisors (see below), whose sum is σ = 1246328370. Its totient is φ = 262384752.

The previous prime is 612231283. The next prime is 612231299. The reversal of 612231284 is 482132216.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 500506384 + 111724900 = 22372^2 + 10570^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612231283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1561619 + ... + 1562010.

It is an arithmetic number, because the mean of its divisors is an integer number (69240465).

Almost surely, 2^612231284 is an apocalyptic number.

It is an amenable number.

612231284 is an abundant number, since it is smaller than the sum of its proper divisors (634097086).

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

612231284 is a wasteful number, since it uses less digits than its factorization.

612231284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123647 (or 3123638 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 612231284 is about 24743.3078629354. The cubic root of 612231284 is about 849.1254136890.

The spelling of 612231284 in words is "six hundred twelve million, two hundred thirty-one thousand, two hundred eighty-four".