2038705638 has 16 divisors (see below), whose sum is σ = 4208941056. Its totient is φ = 657646920.

The previous prime is 2038705601. The next prime is 2038705639. The reversal of 2038705638 is 8365078302.

It is a self number, because there is not a number n which added to its sum of digits gives 2038705638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2038705639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5480206 + ... + 5480577.

It is an arithmetic number, because the mean of its divisors is an integer number (263058816).

Almost surely, 2^2038705638 is an apocalyptic number.

2038705638 is an abundant number, since it is smaller than the sum of its proper divisors (2170235418).

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

2038705638 is a wasteful number, since it uses less digits than its factorization.

2038705638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10960819.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 2038705638 is about 45152.0280607638. The cubic root of 2038705638 is about 1267.9968499791.

The spelling of 2038705638 in words is "two billion, thirty-eight million, seven hundred five thousand, six hundred thirty-eight".