5638620 has 48 divisors (see below), whose sum is σ = 17004960. Its totient is φ = 1387776.

The previous prime is 5638613. The next prime is 5638631. The reversal of 5638620 is 268365.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2835 + ... + 4394.

It is an arithmetic number, because the mean of its divisors is an integer number (354270).

Almost surely, 2^5638620 is an apocalyptic number.

It is an amenable number.

5638620 is an abundant number, since it is smaller than the sum of its proper divisors (11366340).

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

5638620 is a wasteful number, since it uses less digits than its factorization.

5638620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7254 (or 7252 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 5638620 is about 2374.5778572201. The cubic root of 5638620 is about 177.9880899324.

The spelling of 5638620 in words is "five million, six hundred thirty-eight thousand, six hundred twenty".