38986620 has 24 divisors (see below), whose sum is σ = 109162704. Its totient is φ = 10396416.

The previous prime is 38986609. The next prime is 38986631. The reversal of 38986620 is 2668983.

It is an interprime number because it is at equal distance from previous prime (38986609) and next prime (38986631).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324829 + ... + 324948.

It is an arithmetic number, because the mean of its divisors is an integer number (4548446).

Almost surely, 2^38986620 is an apocalyptic number.

38986620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38986620 is an abundant number, since it is smaller than the sum of its proper divisors (70176084).

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

38986620 is a wasteful number, since it uses less digits than its factorization.

38986620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649789 (or 649787 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 38986620 is about 6243.9266491528. The cubic root of 38986620 is about 339.0823583193.

The spelling of 38986620 in words is "thirty-eight million, nine hundred eighty-six thousand, six hundred twenty".