641295792 has 200 divisors, whose sum is σ = 1949919840. Its totient is φ = 203212800.

The previous prime is 641295779. The next prime is 641295797. The reversal of 641295792 is 297592146.

641295792 is a `hidden beast` number, since 64 + 12 + 9 + 579 + 2 = 666.

It is a super-2 number, since 2×641295792² = 822520585673814528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641295797) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4246917 + ... + 4247067.

Almost surely, 2^641295792 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 641295792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (974959920).

641295792 is an abundant number, since it is smaller than the sum of its proper divisors (1308624048).

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

641295792 is a wasteful number, since it uses less digits than its factorization.

641295792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 298 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 641295792 is about 25323.8186693871. The cubic root of 641295792 is about 862.3550879414.

The spelling of 641295792 in words is "six hundred forty-one million, two hundred ninety-five thousand, seven hundred ninety-two".