38693880 has 96 divisors (see below), whose sum is σ = 132397200. Its totient is φ = 9773568.

The previous prime is 38693867. The next prime is 38693881. The reversal of 38693880 is 8839683.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38693881) 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, 4012 + ... + 9668.

Almost surely, 2^38693880 is an apocalyptic number.

38693880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38693880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66198600).

38693880 is an abundant number, since it is smaller than the sum of its proper divisors (93703320).

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

38693880 is a wasteful number, since it uses less digits than its factorization.

38693880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5693 (or 5686 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 38693880 is about 6220.4404988714. The cubic root of 38693880 is about 338.2315325961.

The spelling of 38693880 in words is "thirty-eight million, six hundred ninety-three thousand, eight hundred eighty".