38288655 has 24 divisors (see below), whose sum is σ = 66519648. Its totient is φ = 20373696.

The previous prime is 38288651. The next prime is 38288669. The reversal of 38288655 is 55688283.

It is a happy number.

It is not a de Polignac number, because 38288655 - 2² = 38288651 is a prime.

It is a super-2 number, since 2×38288655² = 2932042203418050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 38288655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38288651) 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, 28734 + ... + 30036.

It is an arithmetic number, because the mean of its divisors is an integer number (2771652).

Almost surely, 2^38288655 is an apocalyptic number.

38288655 is a deficient number, since it is larger than the sum of its proper divisors (28230993).

38288655 is a wasteful number, since it uses less digits than its factorization.

38288655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967 (or 1964 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 38288655 is about 6187.7827208137. The cubic root of 38288655 is about 337.0466670721.

The spelling of 38288655 in words is "thirty-eight million, two hundred eighty-eight thousand, six hundred fifty-five".