2138637354 has 32 divisors (see below), whose sum is σ = 4892190720. Its totient is φ = 610554672.

The previous prime is 2138637353. The next prime is 2138637373. The reversal of 2138637354 is 4537368312.

2138637354 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2138637353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35187 + ... + 74265.

It is an arithmetic number, because the mean of its divisors is an integer number (152880960).

Almost surely, 2^2138637354 is an apocalyptic number.

2138637354 is an abundant number, since it is smaller than the sum of its proper divisors (2753553366).

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

2138637354 is a wasteful number, since it uses less digits than its factorization.

2138637354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40394.

The product of its digits is 362880, while the sum is 42.

The square root of 2138637354 is about 46245.4035986280. The cubic root of 2138637354 is about 1288.3851664485.

The spelling of 2138637354 in words is "two billion, one hundred thirty-eight million, six hundred thirty-seven thousand, three hundred fifty-four".