4139280 has 60 divisors (see below), whose sum is σ = 13903500. Its totient is φ = 1103616.

The previous prime is 4139273. The next prime is 4139297. The reversal of 4139280 is 829314.

It can be written as a sum of positive squares in 2 ways, for example, as 589824 + 3549456 = 768^2 + 1884^2 .

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

It is a super-4 number, since 4×4139280⁴ (a number of 28 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2155 + ... + 3594.

It is an arithmetic number, because the mean of its divisors is an integer number (231725).

Almost surely, 2^4139280 is an apocalyptic number.

4139280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4139280 is an abundant number, since it is smaller than the sum of its proper divisors (9764220).

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

4139280 is a wasteful number, since it uses less digits than its factorization.

4139280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5768 (or 5759 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 4139280 is about 2034.5220568969. The cubic root of 4139280 is about 160.5615683668.

The spelling of 4139280 in words is "four million, one hundred thirty-nine thousand, two hundred eighty".