5645401 has 8 divisors (see below), whose sum is σ = 5951880. Its totient is φ = 5346432.

The previous prime is 5645383. The next prime is 5645407. The reversal of 5645401 is 1045465.

It can be written as a sum of positive squares in 4 ways, for example, as 360000 + 5285401 = 600^2 + 2299^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5645401 - 2⁷ = 5645273 is a prime.

It is a Duffinian number.

5645401 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5645407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300 + ... + 3373.

It is an arithmetic number, because the mean of its divisors is an integer number (743985).

Almost surely, 2^5645401 is an apocalyptic number.

It is an amenable number.

5645401 is a deficient number, since it is larger than the sum of its proper divisors (306479).

5645401 is a wasteful number, since it uses less digits than its factorization.

5645401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 5645401 is about 2376.0052609369. The cubic root of 5645401 is about 178.0594107958.

Subtracting from 5645401 its sum of digits (25), we obtain a square (5645376 = 2376²).

The spelling of 5645401 in words is "five million, six hundred forty-five thousand, four hundred one".