919012920 has 128 divisors (see below), whose sum is σ = 3183667200. Its totient is φ = 207876096.

The previous prime is 919012901. The next prime is 919012921. The reversal of 919012920 is 29210919.

919012920 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (919012921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75841 + ... + 87119.

It is an arithmetic number, because the mean of its divisors is an integer number (24872400).

Almost surely, 2^919012920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 919012920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1591833600).

919012920 is an abundant number, since it is smaller than the sum of its proper divisors (2264654280).

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

919012920 is a wasteful number, since it uses less digits than its factorization.

919012920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11397 (or 11393 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 919012920 is about 30315.2258774366. The cubic root of 919012920 is about 972.2408673334.

The spelling of 919012920 in words is "nine hundred nineteen million, twelve thousand, nine hundred twenty".