2038641738 has 24 divisors (see below), whose sum is σ = 4660421472. Its totient is φ = 582385464.

The previous prime is 2038641713. The next prime is 2038641757. The reversal of 2038641738 is 8371468302.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2038641738.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289131 + ... + 296097.

It is an arithmetic number, because the mean of its divisors is an integer number (194184228).

Almost surely, 2^2038641738 is an apocalyptic number.

2038641738 is an abundant number, since it is smaller than the sum of its proper divisors (2621779734).

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

2038641738 is an frugal number, since it uses more digits than its factorization.

2038641738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13946 (or 6979 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 2038641738 is about 45151.3204458076. The cubic root of 2038641738 is about 1267.9836020562.

Multiplying 2038641738 by its sum of digits (42), we get a square (85622952996 = 292614²).

2038641738 divided by its sum of digits (42) gives a square (48539089 = 6967²).

The spelling of 2038641738 in words is "two billion, thirty-eight million, six hundred forty-one thousand, seven hundred thirty-eight".