2142744620 has 24 divisors (see below), whose sum is σ = 4501403088. Its totient is φ = 856785600.

The previous prime is 2142744619. The next prime is 2142744623. The reversal of 2142744620 is 264472412.

It is not an unprimeable number, because it can be changed into a prime (2142744623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41390 + ... + 77450.

It is an arithmetic number, because the mean of its divisors is an integer number (187558462).

Almost surely, 2^2142744620 is an apocalyptic number.

2142744620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2142744620 is an abundant number, since it is smaller than the sum of its proper divisors (2358658468).

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

2142744620 is a wasteful number, since it uses less digits than its factorization.

2142744620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39041 (or 39039 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 2142744620 is about 46289.7895869057. The cubic root of 2142744620 is about 1289.2094228505.

The spelling of 2142744620 in words is "two billion, one hundred forty-two million, seven hundred forty-four thousand, six hundred twenty".