2018888402 has 8 divisors (see below), whose sum is σ = 3085471116. Its totient is φ = 990398032.

The previous prime is 2018888383. The next prime is 2018888407. The reversal of 2018888402 is 2048888102.

It can be written as a sum of positive squares in 2 ways, for example, as 2001757081 + 17131321 = 44741^2 + 4139^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2018888402² = 8151820759460227208, 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 2018888402.

It is not an unprimeable number, because it can be changed into a prime (2018888407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9522953 + ... + 9523164.

Almost surely, 2^2018888402 is an apocalyptic number.

2018888402 is a deficient number, since it is larger than the sum of its proper divisors (1066582714).

2018888402 is a wasteful number, since it uses less digits than its factorization.

2018888402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19046172.

The product of its (nonzero) digits is 65536, while the sum is 41.

The square root of 2018888402 is about 44932.0420412872. The cubic root of 2018888402 is about 1263.8749446494.

The spelling of 2018888402 in words is "two billion, eighteen million, eight hundred eighty-eight thousand, four hundred two".