2038390864 has 40 divisors (see below), whose sum is σ = 4128465920. Its totient is φ = 973814400.

The previous prime is 2038390859. The next prime is 2038390867. The reversal of 2038390864 is 4680938302.

It is a self number, because there is not a number n which added to its sum of digits gives 2038390864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2038390867) 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, 13174 + ... + 65194.

It is an arithmetic number, because the mean of its divisors is an integer number (103211648).

Almost surely, 2^2038390864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2038390864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2064232960).

2038390864 is an abundant number, since it is smaller than the sum of its proper divisors (2090075056).

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

2038390864 is a wasteful number, since it uses less digits than its factorization.

2038390864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52139 (or 52133 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 2038390864 is about 45148.5422134536. The cubic root of 2038390864 is about 1267.9315874948.

The spelling of 2038390864 in words is "two billion, thirty-eight million, three hundred ninety thousand, eight hundred sixty-four".