2235705864 has 64 divisors (see below), whose sum is σ = 6593802240. Its totient is φ = 618166080.

The previous prime is 2235705863. The next prime is 2235705911. The reversal of 2235705864 is 4685075322.

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 (2235705863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209434 + ... + 219849.

It is an arithmetic number, because the mean of its divisors is an integer number (103028160).

Almost surely, 2^2235705864 is an apocalyptic number.

2235705864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2235705864 is an abundant number, since it is smaller than the sum of its proper divisors (4358096376).

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

2235705864 is a wasteful number, since it uses less digits than its factorization.

2235705864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429330 (or 429326 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The square root of 2235705864 is about 47283.2514110441. The cubic root of 2235705864 is about 1307.5898937813.

The spelling of 2235705864 in words is "two billion, two hundred thirty-five million, seven hundred five thousand, eight hundred sixty-four".