2002858638 has 32 divisors (see below), whose sum is σ = 4626927360. Its totient is φ = 571224960.

The previous prime is 2002858603. The next prime is 2002858657. The reversal of 2002858638 is 8368582002.

2002858638 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2002858638² = 8022885447622430088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2002858638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891418 + ... + 893661.

It is an arithmetic number, because the mean of its divisors is an integer number (144591480).

Almost surely, 2^2002858638 is an apocalyptic number.

2002858638 is an abundant number, since it is smaller than the sum of its proper divisors (2624068722).

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

2002858638 is a wasteful number, since it uses less digits than its factorization.

2002858638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785112.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 2002858638 is about 44753.3086821522. The cubic root of 2002858638 is about 1260.5210404913.

The spelling of 2002858638 in words is "two billion, two million, eight hundred fifty-eight thousand, six hundred thirty-eight".