38840280 has 64 divisors (see below), whose sum is σ = 120549600. Its totient is φ = 9999360.

The previous prime is 38840279. The next prime is 38840281. The reversal of 38840280 is 8204883.

It is an interprime number because it is at equal distance from previous prime (38840279) and next prime (38840281).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38840281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2101 + ... + 9060.

Almost surely, 2^38840280 is an apocalyptic number.

38840280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38840280 is an abundant number, since it is smaller than the sum of its proper divisors (81709320).

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

38840280 is a wasteful number, since it uses less digits than its factorization.

38840280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11204 (or 11200 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 38840280 is about 6232.1970443817. The cubic root of 38840280 is about 338.6575670429.

The spelling of 38840280 in words is "thirty-eight million, eight hundred forty thousand, two hundred eighty".