6912203940 has 144 divisors (see below), whose sum is σ = 22219732080. Its totient is φ = 1736232960.

The previous prime is 6912203929. The next prime is 6912203983. The reversal of 6912203940 is 493022196.

It can be written as a sum of positive squares in 8 ways, for example, as 9585216 + 6902618724 = 3096^2 + 83082^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6912203895 and 6912203904.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 197872 + ... + 230168.

It is an arithmetic number, because the mean of its divisors is an integer number (154303695).

Almost surely, 2^6912203940 is an apocalyptic number.

6912203940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6912203940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11109866040).

6912203940 is an abundant number, since it is smaller than the sum of its proper divisors (15307528140).

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

6912203940 is a wasteful number, since it uses less digits than its factorization.

6912203940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32382 (or 32377 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 6912203940 is about 83139.6652627373. The cubic root of 6912203940 is about 1904.8999968171.

The spelling of 6912203940 in words is "six billion, nine hundred twelve million, two hundred three thousand, nine hundred forty".