38555280 has 60 divisors (see below), whose sum is σ = 129483900. Its totient is φ = 10281216.

The previous prime is 38555267. The next prime is 38555281. The reversal of 38555280 is 8255583.

It can be written as a sum of positive squares in 2 ways, for example, as 4822416 + 33732864 = 2196^2 + 5808^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (38555281) 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, 26055 + ... + 27494.

It is an arithmetic number, because the mean of its divisors is an integer number (2158065).

Almost surely, 2^38555280 is an apocalyptic number.

38555280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38555280 is an abundant number, since it is smaller than the sum of its proper divisors (90928620).

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

38555280 is a wasteful number, since it uses less digits than its factorization.

38555280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53568 (or 53559 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 38555280 is about 6209.2898144635. The cubic root of 38555280 is about 337.8272053066.

The spelling of 38555280 in words is "thirty-eight million, five hundred fifty-five thousand, two hundred eighty".