3894280 has 32 divisors (see below), whose sum is σ = 9437400. Its totient is φ = 1437696.

The previous prime is 3894269. The next prime is 3894307. The reversal of 3894280 is 824983.

It can be written as a sum of positive squares in 4 ways, for example, as 2439844 + 1454436 = 1562^2 + 1206^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3225 + ... + 4264.

Almost surely, 2^3894280 is an apocalyptic number.

It is an amenable number.

3894280 is an abundant number, since it is smaller than the sum of its proper divisors (5543120).

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

3894280 is a wasteful number, since it uses less digits than its factorization.

3894280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7513 (or 7509 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 3894280 is about 1973.3930171154. The cubic root of 3894280 is about 157.3290999212.

The spelling of 3894280 in words is "three million, eight hundred ninety-four thousand, two hundred eighty".