38636620 has 24 divisors (see below), whose sum is σ = 88513488. Its totient is φ = 14049600.

The previous prime is 38636617. The next prime is 38636623. The reversal of 38636620 is 2663683.

It is an interprime number because it is at equal distance from previous prime (38636617) and next prime (38636623).

It is not an unprimeable number, because it can be changed into a prime (38636623) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 87591 + ... + 88030.

It is an arithmetic number, because the mean of its divisors is an integer number (3688062).

Almost surely, 2^38636620 is an apocalyptic number.

It is an amenable number.

38636620 is an abundant number, since it is smaller than the sum of its proper divisors (49876868).

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

38636620 is a wasteful number, since it uses less digits than its factorization.

38636620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175641 (or 175639 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 38636620 is about 6215.8362269288. The cubic root of 38636620 is about 338.0646095693.

The spelling of 38636620 in words is "thirty-eight million, six hundred thirty-six thousand, six hundred twenty".