3061991140 has 24 divisors (see below), whose sum is σ = 6924811320. Its totient is φ = 1130581248.

The previous prime is 3061991123. The next prime is 3061991147. The reversal of 3061991140 is 411991603.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 202094656 + 2859896484 = 14216^2 + 53478^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3061991096 and 3061991105.

It is not an unprimeable number, because it can be changed into a prime (3061991147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5888185 + ... + 5888704.

It is an arithmetic number, because the mean of its divisors is an integer number (288533805).

Almost surely, 2^3061991140 is an apocalyptic number.

It is an amenable number.

3061991140 is an abundant number, since it is smaller than the sum of its proper divisors (3862820180).

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

3061991140 is a wasteful number, since it uses less digits than its factorization.

3061991140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11776911 (or 11776909 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 3061991140 is about 55335.2612716340. The cubic root of 3061991140 is about 1452.1159974062.

The spelling of 3061991140 in words is "three billion, sixty-one million, nine hundred ninety-one thousand, one hundred forty".