641412312 has 64 divisors (see below), whose sum is σ = 1714452480. Its totient is φ = 199260672.

The previous prime is 641412301. The next prime is 641412341. The reversal of 641412312 is 213214146.

641412312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×641412312² = 822819507970370688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

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, 34393 + ... + 49655.

It is an arithmetic number, because the mean of its divisors is an integer number (26788320).

Almost surely, 2^641412312 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 641412312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (857226240).

641412312 is an abundant number, since it is smaller than the sum of its proper divisors (1073040168).

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

641412312 is a wasteful number, since it uses less digits than its factorization.

641412312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15392 (or 15388 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 641412312 is about 25326.1191657940. The cubic root of 641412312 is about 862.4073132074.

Adding to 641412312 its reverse (213214146), we get a palindrome (854626458).

The spelling of 641412312 in words is "six hundred forty-one million, four hundred twelve thousand, three hundred twelve".