662012312 has 64 divisors (see below), whose sum is σ = 1408942080. Its totient is φ = 289314432.

The previous prime is 662012279. The next prime is 662012369. The reversal of 662012312 is 213210266.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245033 + ... + 247719.

It is an arithmetic number, because the mean of its divisors is an integer number (22014720).

Almost surely, 2^662012312 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 662012312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (704471040).

662012312 is an abundant number, since it is smaller than the sum of its proper divisors (746929768).

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

662012312 is a wasteful number, since it uses less digits than its factorization.

662012312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832 (or 2828 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 662012312 is about 25729.5999191593. The cubic root of 662012312 is about 871.5427385467.

Adding to 662012312 its reverse (213210266), we get a palindrome (875222578).

The spelling of 662012312 in words is "six hundred sixty-two million, twelve thousand, three hundred twelve".