38388669 has 32 divisors (see below), whose sum is σ = 60600960. Its totient is φ = 21350400.

The previous prime is 38388641. The next prime is 38388673. The reversal of 38388669 is 96688383.

It is not a de Polignac number, because 38388669 - 2⁹ = 38388157 is a prime.

It is a super-2 number, since 2×38388669² = 2947379815183122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38388689) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22167 + ... + 23835.

It is an arithmetic number, because the mean of its divisors is an integer number (1893780).

Almost surely, 2^38388669 is an apocalyptic number.

It is an amenable number.

38388669 is a deficient number, since it is larger than the sum of its proper divisors (22212291).

38388669 is a wasteful number, since it uses less digits than its factorization.

38388669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741.

The product of its digits is 1492992, while the sum is 51.

The square root of 38388669 is about 6195.8590203458. The cubic root of 38388669 is about 337.3398790523.

The spelling of 38388669 in words is "thirty-eight million, three hundred eighty-eight thousand, six hundred sixty-nine".