3603694920 has 256 divisors, whose sum is σ = 12964700160. Its totient is φ = 784069632.

The previous prime is 3603694909. The next prime is 3603694921. The reversal of 3603694920 is 294963063.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (3603694921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1459527 + ... + 1461993.

It is an arithmetic number, because the mean of its divisors is an integer number (50643360).

Almost surely, 2^3603694920 is an apocalyptic number.

3603694920 is a gapful number since it is divisible by the number (30) 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 3603694920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6482350080).

3603694920 is an abundant number, since it is smaller than the sum of its proper divisors (9361005240).

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

3603694920 is a wasteful number, since it uses less digits than its factorization.

3603694920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572 (or 2568 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 42.

The square root of 3603694920 is about 60030.7831033379. The cubic root of 3603694920 is about 1533.1430284718.

The spelling of 3603694920 in words is "three billion, six hundred three million, six hundred ninety-four thousand, nine hundred twenty".