38218653 has 12 divisors (see below), whose sum is σ = 60223488. Its totient is φ = 23162760.

The previous prime is 38218651. The next prime is 38218657. The reversal of 38218653 is 35681283.

It is not a de Polignac number, because 38218653 - 2¹ = 38218651 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38218651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192925 + ... + 193122.

It is an arithmetic number, because the mean of its divisors is an integer number (5018624).

Almost surely, 2^38218653 is an apocalyptic number.

38218653 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

38218653 is a deficient number, since it is larger than the sum of its proper divisors (22004835).

38218653 is a wasteful number, since it uses less digits than its factorization.

38218653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386064 (or 386061 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 38218653 is about 6182.1236642435. The cubic root of 38218653 is about 336.8411376613.

The spelling of 38218653 in words is "thirty-eight million, two hundred eighteen thousand, six hundred fifty-three".