5640434 has 8 divisors (see below), whose sum is σ = 8479488. Its totient is φ = 2813940.

The previous prime is 5640409. The next prime is 5640449. The reversal of 5640434 is 4340465.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1922 + ... + 3869.

It is an arithmetic number, because the mean of its divisors is an integer number (1059936).

Almost surely, 2^5640434 is an apocalyptic number.

5640434 is a deficient number, since it is larger than the sum of its proper divisors (2839054).

5640434 is a wasteful number, since it uses less digits than its factorization.

5640434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6280.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 5640434 is about 2374.9597891333. The cubic root of 5640434 is about 178.0071747308.

Adding to 5640434 its reverse (4340465), we get a palindrome (9980899).

The spelling of 5640434 in words is "five million, six hundred forty thousand, four hundred thirty-four".