4009660836 has 12 divisors (see below), whose sum is σ = 9355875312. Its totient is φ = 1336553608.

The previous prime is 4009660829. The next prime is 4009660847. The reversal of 4009660836 is 6380669004.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167069190 + ... + 167069213.

It is an arithmetic number, because the mean of its divisors is an integer number (779656276).

Almost surely, 2^4009660836 is an apocalyptic number.

It is an amenable number.

4009660836 is an abundant number, since it is smaller than the sum of its proper divisors (5346214476).

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

4009660836 is a wasteful number, since it uses less digits than its factorization.

4009660836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334138410 (or 334138408 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 4009660836 is about 63321.8827578587. The cubic root of 4009660836 is about 1588.6779929286.

The spelling of 4009660836 in words is "four billion, nine million, six hundred sixty thousand, eight hundred thirty-six".