5640045 has 8 divisors (see below), whose sum is σ = 9024096. Its totient is φ = 3008016.

The previous prime is 5640043. The next prime is 5640059. The reversal of 5640045 is 5400465.

5640045 = T₄₇₈ + T₄₇₉ + ... + T₅₂₂.

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

It is not a de Polignac number, because 5640045 - 2¹ = 5640043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5639997 and 5640024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5640043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187987 + ... + 188016.

It is an arithmetic number, because the mean of its divisors is an integer number (1128012).

Almost surely, 2^5640045 is an apocalyptic number.

It is an amenable number.

5640045 is a deficient number, since it is larger than the sum of its proper divisors (3384051).

5640045 is a wasteful number, since it uses less digits than its factorization.

5640045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376011.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 5640045 is about 2374.8778915978. The cubic root of 5640045 is about 178.0030824699.

The spelling of 5640045 in words is "five million, six hundred forty thousand, forty-five".