5645490 has 32 divisors (see below), whose sum is σ = 13625280. Its totient is φ = 1497024.

The previous prime is 5645483. The next prime is 5645491. The reversal of 5645490 is 945465.

It is not an unprimeable number, because it can be changed into a prime (5645491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6396 + ... + 7224.

It is an arithmetic number, because the mean of its divisors is an integer number (425790).

Almost surely, 2^5645490 is an apocalyptic number.

5645490 is an abundant number, since it is smaller than the sum of its proper divisors (7979790).

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

5645490 is a wasteful number, since it uses less digits than its factorization.

5645490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 5645490 is about 2376.0239897779. The cubic root of 5645490 is about 178.0603464957.

The spelling of 5645490 in words is "five million, six hundred forty-five thousand, four hundred ninety".