10640534 has 8 divisors (see below), whose sum is σ = 16392288. Its totient is φ = 5176440.

The previous prime is 10640527. The next prime is 10640543. The reversal of 10640534 is 43504601.

It is a happy number.

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

It is a super-2 number, since 2×10640534² = 226441927610312, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 71822 + ... + 71969.

It is an arithmetic number, because the mean of its divisors is an integer number (2049036).

Almost surely, 2^10640534 is an apocalyptic number.

10640534 is a deficient number, since it is larger than the sum of its proper divisors (5751754).

10640534 is a wasteful number, since it uses less digits than its factorization.

10640534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143830.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 10640534 is about 3261.9831391348. The cubic root of 10640534 is about 219.9485692449.

The spelling of 10640534 in words is "ten million, six hundred forty thousand, five hundred thirty-four".