641214364 has 48 divisors (see below), whose sum is σ = 1368686592. Its totient is φ = 256580352.

The previous prime is 641214283. The next prime is 641214397. The reversal of 641214364 is 463412146.

It is a super-2 number, since 2×641214364² = 822311721199848992, which contains 22 as substring.

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, 55149 + ... + 65755.

It is an arithmetic number, because the mean of its divisors is an integer number (28514304).

Almost surely, 2^641214364 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 641214364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (684343296).

641214364 is an abundant number, since it is smaller than the sum of its proper divisors (727472228).

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

641214364 is a wasteful number, since it uses less digits than its factorization.

641214364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10762 (or 10760 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 641214364 is about 25322.2108829383. The cubic root of 641214364 is about 862.3185874564.

The spelling of 641214364 in words is "six hundred forty-one million, two hundred fourteen thousand, three hundred sixty-four".