38997800 has 24 divisors (see below), whose sum is σ = 90670350. Its totient is φ = 15599040.

The previous prime is 38997793. The next prime is 38997853. The reversal of 38997800 is 879983.

It can be written as a sum of positive squares in 3 ways, for example, as 16662724 + 22335076 = 4082^2 + 4726^2 .

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 5 ways as a sum of consecutive naturals, for example, 97295 + ... + 97694.

Almost surely, 2^38997800 is an apocalyptic number.

It is an amenable number.

38997800 is an abundant number, since it is smaller than the sum of its proper divisors (51672550).

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

38997800 is a wasteful number, since it uses less digits than its factorization.

38997800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195005 (or 194996 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 38997800 is about 6244.8218549451. The cubic root of 38997800 is about 339.1147675446.

It can be divided in two parts, 389 and 97800, that added together give a palindrome (98189).

The spelling of 38997800 in words is "thirty-eight million, nine hundred ninety-seven thousand, eight hundred".