2018951628 has 48 divisors (see below), whose sum is σ = 5004384000. Its totient is φ = 631706688.

The previous prime is 2018951573. The next prime is 2018951629. The reversal of 2018951628 is 8261598102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2018951628.

It is not an unprimeable number, because it can be changed into a prime (2018951629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15768 + ... + 65471.

It is an arithmetic number, because the mean of its divisors is an integer number (104258000).

Almost surely, 2^2018951628 is an apocalyptic number.

It is an amenable number.

2018951628 is an abundant number, since it is smaller than the sum of its proper divisors (2985432372).

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

2018951628 is a wasteful number, since it uses less digits than its factorization.

2018951628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81374 (or 81372 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 2018951628 is about 44932.7456094105. The cubic root of 2018951628 is about 1263.8881382006. Note that the first 3 decimals are identical.

It can be divided in two parts, 20189 and 51628, that added together give a palindrome (71817).

The spelling of 2018951628 in words is "two billion, eighteen million, nine hundred fifty-one thousand, six hundred twenty-eight".