38109900 has 36 divisors (see below), whose sum is σ = 110265512. Its totient is φ = 10162560.

The previous prime is 38109899. The next prime is 38109949. The reversal of 38109900 is 990183.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63217 + ... + 63816.

Almost surely, 2^38109900 is an apocalyptic number.

38109900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38109900 is an abundant number, since it is smaller than the sum of its proper divisors (72155612).

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

38109900 is a wasteful number, since it uses less digits than its factorization.

38109900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127050 (or 127043 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 38109900 is about 6173.3216342582. The cubic root of 38109900 is about 336.5213349568.

The spelling of 38109900 in words is "thirty-eight million, one hundred nine thousand, nine hundred".