2135604000 has 96 divisors (see below), whose sum is σ = 6996278016. Its totient is φ = 569491200.

The previous prime is 2135603983. The next prime is 2135604019. The reversal of 2135604000 is 4065312.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 76984 + ... + 100983.

It is an arithmetic number, because the mean of its divisors is an integer number (72877896).

Almost surely, 2^2135604000 is an apocalyptic number.

2135604000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2135604000 is an abundant number, since it is smaller than the sum of its proper divisors (4860674016).

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

2135604000 is a wasteful number, since it uses less digits than its factorization.

2135604000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177995 (or 177977 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2135604000 is about 46212.5956855920. The cubic root of 2135604000 is about 1287.7757476431.

Adding to 2135604000 its reverse (4065312), we get a palindrome (2139669312).

The spelling of 2135604000 in words is "two billion, one hundred thirty-five million, six hundred four thousand".