662623232 has 44 divisors (see below), whose sum is σ = 1360477140. Its totient is φ = 322338816.

The previous prime is 662623211. The next prime is 662623237. The reversal of 662623232 is 232326266.

It can be written as a sum of positive squares in 2 ways, for example, as 233967616 + 428655616 = 15296^2 + 20704^2 .

It is a super-2 number, since 2×662623232² = 878139095172251648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662623237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29144 + ... + 46632.

It is an arithmetic number, because the mean of its divisors is an integer number (30919935).

Almost surely, 2^662623232 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 662623232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (680238570).

662623232 is an abundant number, since it is smaller than the sum of its proper divisors (697853908).

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

662623232 is a wasteful number, since it uses less digits than its factorization.

662623232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17546 (or 17528 counting only the distinct ones).

The product of its digits is 31104, while the sum is 32.

The square root of 662623232 is about 25741.4691111444. The cubic root of 662623232 is about 871.8107492673.

Adding to 662623232 its reverse (232326266), we get a palindrome (894949498).

The spelling of 662623232 in words is "six hundred sixty-two million, six hundred twenty-three thousand, two hundred thirty-two".