5640146 has 8 divisors (see below), whose sum is σ = 8509644. Its totient is φ = 2803600.

The previous prime is 5640119. The next prime is 5640149. The reversal of 5640146 is 6410465.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4669921 + 970225 = 2161^2 + 985^2 .

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

It is a super-2 number, since 2×5640146² = 63622493802632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5640149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7805 + ... + 8496.

Almost surely, 2^5640146 is an apocalyptic number.

5640146 is a deficient number, since it is larger than the sum of its proper divisors (2869498).

5640146 is a wasteful number, since it uses less digits than its factorization.

5640146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16476.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 5640146 is about 2374.8991557538. The cubic root of 5640146 is about 178.0041450030.

The spelling of 5640146 in words is "five million, six hundred forty thousand, one hundred forty-six".