38422100 has 36 divisors (see below), whose sum is σ = 86257500. Its totient is φ = 14837760.

The previous prime is 38422099. The next prime is 38422103. The reversal of 38422100 is 122483.

It can be written as a sum of positive squares in 6 ways, for example, as 2446096 + 35976004 = 1564^2 + 5998^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38422103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3725 + ... + 9524.

Almost surely, 2^38422100 is an apocalyptic number.

It is an amenable number.

38422100 is an abundant number, since it is smaller than the sum of its proper divisors (47835400).

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

38422100 is a wasteful number, since it uses less digits than its factorization.

38422100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13292 (or 13285 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 38422100 is about 6198.5562835228. The cubic root of 38422100 is about 337.4377754512.

Adding to 38422100 its reverse (122483), we get a palindrome (38544583).

The spelling of 38422100 in words is "thirty-eight million, four hundred twenty-two thousand, one hundred".