38240000 has 90 divisors (see below), whose sum is σ = 95781840. Its totient is φ = 15232000.

The previous prime is 38239969. The next prime is 38240011. The reversal of 38240000 is 4283.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 159881 + ... + 160119.

Almost surely, 2^38240000 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 38240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47890920).

38240000 is an abundant number, since it is smaller than the sum of its proper divisors (57541840).

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

38240000 is an frugal number, since it uses more digits than its factorization.

38240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 38240000 is about 6183.8499334961. The cubic root of 38240000 is about 336.9038401103.

Adding to 38240000 its reverse (4283), we get a palindrome (38244283).

The spelling of 38240000 in words is "thirty-eight million, two hundred forty thousand".