38947500 has 120 divisors (see below), whose sum is σ = 126397040. Its totient is φ = 10368000.

The previous prime is 38947483. The next prime is 38947577. The reversal of 38947500 is 574983.

38947500 = T₃₉ + T₄₀ + ... + T₆₁₅.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 67212 + ... + 67788.

Almost surely, 2^38947500 is an apocalyptic number.

38947500 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 38947500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63198520).

38947500 is an abundant number, since it is smaller than the sum of its proper divisors (87449540).

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

38947500 is a wasteful number, since it uses less digits than its factorization.

38947500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 38947500 is about 6240.7932188144. The cubic root of 38947500 is about 338.9689062248.

The spelling of 38947500 in words is "thirty-eight million, nine hundred forty-seven thousand, five hundred".