38500000 has 168 divisors, whose sum is σ = 118123488. Its totient is φ = 12000000.

The previous prime is 38499973. The next prime is 38500001. The reversal of 38500000 is 583.

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38500001) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3499995 + ... + 3500005.

It is an arithmetic number, because the mean of its divisors is an integer number (703116).

Almost surely, 2^38500000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59061744).

38500000 is an abundant number, since it is smaller than the sum of its proper divisors (79623488).

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

38500000 is an frugal number, since it uses more digits than its factorization.

38500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58 (or 25 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 38500000 is about 6204.8368229954. The cubic root of 38500000 is about 337.6656708347.

Adding to 38500000 its reverse (583), we get a palindrome (38500583).

The spelling of 38500000 in words is "thirty-eight million, five hundred thousand".