3649480 has 16 divisors (see below), whose sum is σ = 8211420. Its totient is φ = 1459776.

The previous prime is 3649469. The next prime is 3649487. The reversal of 3649480 is 849463.

It can be written as a sum of positive squares in 2 ways, for example, as 3189796 + 459684 = 1786^2 + 678^2 .

It is not an unprimeable number, because it can be changed into a prime (3649487) 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, 45579 + ... + 45658.

Almost surely, 2^3649480 is an apocalyptic number.

It is an amenable number.

3649480 is an abundant number, since it is smaller than the sum of its proper divisors (4561940).

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

3649480 is a wasteful number, since it uses less digits than its factorization.

3649480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91248 (or 91244 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 3649480 is about 1910.3612223870. The cubic root of 3649480 is about 153.9608603519.

The spelling of 3649480 in words is "three million, six hundred forty-nine thousand, four hundred eighty".