38289400 has 24 divisors (see below), whose sum is σ = 89023320. Its totient is φ = 15315680.

The previous prime is 38289397. The next prime is 38289409. The reversal of 38289400 is 498283.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38289409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 95524 + ... + 95923.

It is an arithmetic number, because the mean of its divisors is an integer number (3709305).

Almost surely, 2^38289400 is an apocalyptic number.

It is an amenable number.

38289400 is an abundant number, since it is smaller than the sum of its proper divisors (50733920).

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

38289400 is a wasteful number, since it uses less digits than its factorization.

38289400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191463 (or 191454 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 38289400 is about 6187.8429197904. The cubic root of 38289400 is about 337.0488530820.

The spelling of 38289400 in words is "thirty-eight million, two hundred eighty-nine thousand, four hundred".