10671640 has 32 divisors (see below), whose sum is σ = 27442080. Its totient is φ = 3658752.

The previous prime is 10671637. The next prime is 10671659. The reversal of 10671640 is 4617601.

It is a happy number.

It is a super-2 number, since 2×10671640² = 227767800579200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18777 + ... + 19336.

It is an arithmetic number, because the mean of its divisors is an integer number (857565).

Almost surely, 2^10671640 is an apocalyptic number.

10671640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10671640 is an abundant number, since it is smaller than the sum of its proper divisors (16770440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10671640 is a wasteful number, since it uses less digits than its factorization.

10671640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38131 (or 38127 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 10671640 is about 3266.7476180446. The cubic root of 10671640 is about 220.1626895791.

It can be divided in two parts, 10671 and 640, that added together give a palindrome (11311).

The spelling of 10671640 in words is "ten million, six hundred seventy-one thousand, six hundred forty".