1020188 has 24 divisors (see below), whose sum is σ = 2008608. Its totient is φ = 449856.

The previous prime is 1020163. The next prime is 1020223. The reversal of 1020188 is 8810201.

1020188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 770 + ... + 1622.

It is an arithmetic number, because the mean of its divisors is an integer number (83692).

2^1020188 is an apocalyptic number.

It is an amenable number.

1020188 is a deficient number, since it is larger than the sum of its proper divisors (988420).

1020188 is a wasteful number, since it uses less digits than its factorization.

1020188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 1020188 is about 1010.0435634169. The cubic root of 1020188 is about 100.6684550555.

Adding to 1020188 its reverse (8810201), we get a palindrome (9830389).

The spelling of 1020188 in words is "one million, twenty thousand, one hundred eighty-eight".