1018265420 has 24 divisors (see below), whose sum is σ = 2149220304. Its totient is φ = 405237056.

The previous prime is 1018265411. The next prime is 1018265441. The reversal of 1018265420 is 245628101.

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, 125282 + ... + 133161.

It is an arithmetic number, because the mean of its divisors is an integer number (89550846).

Almost surely, 2^1018265420 is an apocalyptic number.

1018265420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1018265420 is an abundant number, since it is smaller than the sum of its proper divisors (1130954884).

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

1018265420 is a wasteful number, since it uses less digits than its factorization.

1018265420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258649 (or 258647 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1018265420 is about 31910.2713871255. The cubic root of 1018265420 is about 1006.0517754670.

The spelling of 1018265420 in words is "one billion, eighteen million, two hundred sixty-five thousand, four hundred twenty".