6109640 has 32 divisors (see below), whose sum is σ = 14472000. Its totient is φ = 2314944.

The previous prime is 6109639. The next prime is 6109643. The reversal of 6109640 is 469016.

6109640 = 333² + 334² + ... + 380².

It is not an unprimeable number, because it can be changed into a prime (6109643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3260 + ... + 4779.

It is an arithmetic number, because the mean of its divisors is an integer number (452250).

Almost surely, 2^6109640 is an apocalyptic number.

It is an amenable number.

6109640 is an abundant number, since it is smaller than the sum of its proper divisors (8362360).

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

6109640 is a wasteful number, since it uses less digits than its factorization.

6109640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8069 (or 8065 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 6109640 is about 2471.7685975835. The cubic root of 6109640 is about 182.8122134313.

The spelling of 6109640 in words is "six million, one hundred nine thousand, six hundred forty".