3723280 has 40 divisors (see below), whose sum is σ = 9445824. Its totient is φ = 1353600.

The previous prime is 3723277. The next prime is 3723283. The reversal of 3723280 is 823273.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3723277) and next prime (3723283).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3723283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1236 + ... + 2995.

Almost surely, 2^3723280 is an apocalyptic number.

It is an amenable number.

3723280 is an abundant number, since it is smaller than the sum of its proper divisors (5722544).

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

3723280 is a wasteful number, since it uses less digits than its factorization.

3723280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4255 (or 4249 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 3723280 is about 1929.5802652390. The cubic root of 3723280 is about 154.9917442707.

The spelling of 3723280 in words is "three million, seven hundred twenty-three thousand, two hundred eighty".