5640429 has 8 divisors (see below), whose sum is σ = 7533280. Its totient is φ = 3753936.

The previous prime is 5640409. The next prime is 5640449. The reversal of 5640429 is 9240465.

It is an interprime number because it is at equal distance from previous prime (5640409) and next prime (5640449).

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

It is not a de Polignac number, because 5640429 - 2¹⁵ = 5607661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5640396 and 5640405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5640409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1167 + ... + 3555.

It is an arithmetic number, because the mean of its divisors is an integer number (941660).

Almost surely, 2^5640429 is an apocalyptic number.

It is an amenable number.

5640429 is a deficient number, since it is larger than the sum of its proper divisors (1892851).

5640429 is a wasteful number, since it uses less digits than its factorization.

5640429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 5640429 is about 2374.9587364836. The cubic root of 5640429 is about 178.0071221322.

The spelling of 5640429 in words is "five million, six hundred forty thousand, four hundred twenty-nine".