3151440340 has 12 divisors (see below), whose sum is σ = 6618024756. Its totient is φ = 1260576128.

The previous prime is 3151440283. The next prime is 3151440349. The reversal of 3151440340 is 430441513.

It can be written as a sum of positive squares in 2 ways, for example, as 541865284 + 2609575056 = 23278^2 + 51084^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3151440349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78785989 + ... + 78786028.

It is an arithmetic number, because the mean of its divisors is an integer number (551502063).

Almost surely, 2^3151440340 is an apocalyptic number.

It is an amenable number.

3151440340 is an abundant number, since it is smaller than the sum of its proper divisors (3466584416).

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

3151440340 is a wasteful number, since it uses less digits than its factorization.

3151440340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157572026 (or 157572024 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 3151440340 is about 56137.6909037057. The cubic root of 3151440340 is about 1466.1206023868.

Adding to 3151440340 its reverse (430441513), we get a palindrome (3581881853).

The spelling of 3151440340 in words is "three billion, one hundred fifty-one million, four hundred forty thousand, three hundred forty".