2142742860 has 72 divisors (see below), whose sum is σ = 6841751280. Its totient is φ = 541323648.

The previous prime is 2142742817. The next prime is 2142742871. The reversal of 2142742860 is 682472412.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 309847 + ... + 316686.

Almost surely, 2^2142742860 is an apocalyptic number.

2142742860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2142742860 is an abundant number, since it is smaller than the sum of its proper divisors (4699008420).

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

2142742860 is a wasteful number, since it uses less digits than its factorization.

2142742860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626567 (or 626562 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 2142742860 is about 46289.7705762299. The cubic root of 2142742860 is about 1289.2090698750.

The spelling of 2142742860 in words is "two billion, one hundred forty-two million, seven hundred forty-two thousand, eight hundred sixty".