1011679220 has 12 divisors (see below), whose sum is σ = 2124526404. Its totient is φ = 404671680.

The previous prime is 1011679217. The next prime is 1011679237. The reversal of 1011679220 is 229761101.

It can be written as a sum of positive squares in 2 ways, for example, as 635241616 + 376437604 = 25204^2 + 19402^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25291961 + ... + 25292000.

It is an arithmetic number, because the mean of its divisors is an integer number (177043867).

Almost surely, 2^1011679220 is an apocalyptic number.

1011679220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011679220 is an abundant number, since it is smaller than the sum of its proper divisors (1112847184).

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

1011679220 is a wasteful number, since it uses less digits than its factorization.

1011679220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50583970 (or 50583968 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1011679220 is about 31806.9052251237. The cubic root of 1011679220 is about 1003.8780148933.

The spelling of 1011679220 in words is "one billion, eleven million, six hundred seventy-nine thousand, two hundred twenty".