2138760030 has 64 divisors (see below), whose sum is σ = 5694624000. Its totient is φ = 509694720.

The previous prime is 2138760011. The next prime is 2138760031. The reversal of 2138760030 is 300678312.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 2138760030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138760031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35455 + ... + 74394.

It is an arithmetic number, because the mean of its divisors is an integer number (88978500).

Almost surely, 2^2138760030 is an apocalyptic number.

2138760030 is an abundant number, since it is smaller than the sum of its proper divisors (3555863970).

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

2138760030 is a wasteful number, since it uses less digits than its factorization.

2138760030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109929.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 2138760030 is about 46246.7299384508. The cubic root of 2138760030 is about 1288.4098006572.

The spelling of 2138760030 in words is "two billion, one hundred thirty-eight million, seven hundred sixty thousand, thirty".