2235642140 has 12 divisors (see below), whose sum is σ = 4694848536. Its totient is φ = 894256848.

The previous prime is 2235642139. The next prime is 2235642173. The reversal of 2235642140 is 412465322.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55891034 + ... + 55891073.

It is an arithmetic number, because the mean of its divisors is an integer number (391237378).

Almost surely, 2^2235642140 is an apocalyptic number.

2235642140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2235642140 is an abundant number, since it is smaller than the sum of its proper divisors (2459206396).

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

2235642140 is a wasteful number, since it uses less digits than its factorization.

2235642140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111782116 (or 111782114 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 2235642140 is about 47282.5775524135. The cubic root of 2235642140 is about 1307.5774703149.

The spelling of 2235642140 in words is "two billion, two hundred thirty-five million, six hundred forty-two thousand, one hundred forty".