641416 has 8 divisors (see below), whose sum is σ = 1202670. Its totient is φ = 320704.

The previous prime is 641413. The next prime is 641419. The reversal of 641416 is 614146.

It is an interprime number because it is at equal distance from previous prime (641413) and next prime (641419).

It can be written as a sum of positive squares in only one way, i.e., 568516 + 72900 = 754^2 + 270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×641416² = 822828970112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40081 + ... + 40096.

2⁶⁴¹⁴¹⁶ is an apocalyptic number.

It is an amenable number.

641416 is a deficient number, since it is larger than the sum of its proper divisors (561254).

641416 is a wasteful number, since it uses less digits than its factorization.

641416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80183 (or 80179 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 641416 is about 800.8845110252. The cubic root of 641416 is about 86.2408966097.

The spelling of 641416 in words is "six hundred forty-one thousand, four hundred sixteen".