912001020 has 48 divisors (see below), whose sum is σ = 2918404608. Its totient is φ = 208457280.

The previous prime is 912001003. The next prime is 912001033. The reversal of 912001020 is 20100219.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1085296 + ... + 1086135.

It is an arithmetic number, because the mean of its divisors is an integer number (60800096).

Almost surely, 2^912001020 is an apocalyptic number.

It is an amenable number.

912001020 is an abundant number, since it is smaller than the sum of its proper divisors (2006403588).

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

912001020 is a wasteful number, since it uses less digits than its factorization.

912001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171450 (or 2171448 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 912001020 is about 30199.3546288658. The cubic root of 912001020 is about 969.7618787017.

Adding to 912001020 its reverse (20100219), we get a palindrome (932101239).

The spelling of 912001020 in words is "nine hundred twelve million, one thousand, twenty".