2187005742 has 48 divisors (see below), whose sum is σ = 4797636480. Its totient is φ = 719949456.

The previous prime is 2187005741. The next prime is 2187005767. The reversal of 2187005742 is 2475007812.

2187005742 is a `hidden beast` number, since 2 + 1 + 87 + 0 + 0 + 574 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2187005697 and 2187005706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2187005741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 689853 + ... + 693015.

It is an arithmetic number, because the mean of its divisors is an integer number (99950760).

Almost surely, 2^2187005742 is an apocalyptic number.

2187005742 is an abundant number, since it is smaller than the sum of its proper divisors (2610630738).

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

2187005742 is a wasteful number, since it uses less digits than its factorization.

2187005742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3637 (or 3634 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 2187005742 is about 46765.4331958980. The cubic root of 2187005742 is about 1298.0257492698.

The spelling of 2187005742 in words is "two billion, one hundred eighty-seven million, five thousand, seven hundred forty-two".