38278980 has 60 divisors (see below), whose sum is σ = 120087660. Its totient is φ = 10207296.

The previous prime is 38278973. The next prime is 38278991. The reversal of 38278980 is 8987283.

It can be written as a sum of positive squares in 2 ways, for example, as 5308416 + 32970564 = 2304^2 + 5742^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10195 + ... + 13434.

It is an arithmetic number, because the mean of its divisors is an integer number (2001461).

Almost surely, 2^38278980 is an apocalyptic number.

38278980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38278980 is an abundant number, since it is smaller than the sum of its proper divisors (81808680).

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

38278980 is a wasteful number, since it uses less digits than its factorization.

38278980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23650 (or 23639 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 38278980 is about 6187.0008889607. Note that the first 3 decimals coincide. The cubic root of 38278980 is about 337.0182757100.

The spelling of 38278980 in words is "thirty-eight million, two hundred seventy-eight thousand, nine hundred eighty".