4009397536 has 48 divisors (see below), whose sum is σ = 8256124800. Its totient is φ = 1913015808.

The previous prime is 4009397533. The next prime is 4009397573. The reversal of 4009397536 is 6357939004.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (4009397533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316900 + ... + 329308.

It is an arithmetic number, because the mean of its divisors is an integer number (172002600).

Almost surely, 2^4009397536 is an apocalyptic number.

4009397536 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4009397536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4128062400).

4009397536 is an abundant number, since it is smaller than the sum of its proper divisors (4246727264).

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

4009397536 is a wasteful number, since it uses less digits than its factorization.

4009397536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12881 (or 12873 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 46.

The square root of 4009397536 is about 63319.8036636249. The cubic root of 4009397536 is about 1588.6432179116.

The spelling of 4009397536 in words is "four billion, nine million, three hundred ninety-seven thousand, five hundred thirty-six".