3870280 has 16 divisors (see below), whose sum is σ = 8708220. Its totient is φ = 1548096.

The previous prime is 3870259. The next prime is 3870283. The reversal of 3870280 is 820783.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3526884 + 343396 = 1878^2 + 586^2 .

It is not an unprimeable number, because it can be changed into a prime (3870283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48339 + ... + 48418.

Almost surely, 2^3870280 is an apocalyptic number.

It is an amenable number.

3870280 is an abundant number, since it is smaller than the sum of its proper divisors (4837940).

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

3870280 is a wasteful number, since it uses less digits than its factorization.

3870280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96768 (or 96764 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 3870280 is about 1967.3027220029. The cubic root of 3870280 is about 157.0052333036.

The spelling of 3870280 in words is "three million, eight hundred seventy thousand, two hundred eighty".