5642658 has 48 divisors (see below), whose sum is σ = 14713920. Its totient is φ = 1526688.

The previous prime is 5642653. The next prime is 5642669. The reversal of 5642658 is 8562465.

5642658 is a `hidden beast` number, since 5 + 642 + 6 + 5 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5642653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1216 + ... + 3572.

It is an arithmetic number, because the mean of its divisors is an integer number (306540).

Almost surely, 2^5642658 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5642658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7356960).

5642658 is an abundant number, since it is smaller than the sum of its proper divisors (9071262).

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

5642658 is a wasteful number, since it uses less digits than its factorization.

5642658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391 (or 2388 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 5642658 is about 2375.4279614419. The cubic root of 5642658 is about 178.0305674896.

The spelling of 5642658 in words is "five million, six hundred forty-two thousand, six hundred fifty-eight".