675139280 has 20 divisors (see below), whose sum is σ = 1569699012. Its totient is φ = 270055680.

The previous prime is 675139279. The next prime is 675139363. The reversal of 675139280 is 82931576.

675139280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 506970256 + 168169024 = 22516^2 + 12968^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4219541 + ... + 4219700.

Almost surely, 2^675139280 is an apocalyptic number.

It is an amenable number.

675139280 is an abundant number, since it is smaller than the sum of its proper divisors (894559732).

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

675139280 is a wasteful number, since it uses less digits than its factorization.

675139280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8439254 (or 8439248 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 675139280 is about 25983.4424201259. The cubic root of 675139280 is about 877.2656517131.

The spelling of 675139280 in words is "six hundred seventy-five million, one hundred thirty-nine thousand, two hundred eighty".