1018020726 has 24 divisors (see below), whose sum is σ = 2208462984. Its totient is φ = 338916960.

The previous prime is 1018020719. The next prime is 1018020761. The reversal of 1018020726 is 6270208101.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1018020726.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20271 + ... + 49466.

It is an arithmetic number, because the mean of its divisors is an integer number (92019291).

Almost surely, 2^1018020726 is an apocalyptic number.

1018020726 is an abundant number, since it is smaller than the sum of its proper divisors (1190442258).

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

1018020726 is a wasteful number, since it uses less digits than its factorization.

1018020726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70556 (or 70553 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1018020726 is about 31906.4370621353. The cubic root of 1018020726 is about 1005.9711826766.

Adding to 1018020726 its reverse (6270208101), we get a palindrome (7288228827).

The spelling of 1018020726 in words is "one billion, eighteen million, twenty thousand, seven hundred twenty-six".