6172142440 has 32 divisors (see below), whose sum is σ = 14014737000. Its totient is φ = 2446205184.

The previous prime is 6172142429. The next prime is 6172142441. The reversal of 6172142440 is 442412716.

It can be written as a sum of positive squares in 4 ways, for example, as 5313535236 + 858607204 = 72894^2 + 29302^2 .

It is not an unprimeable number, because it can be changed into a prime (6172142441) 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, 703455 + ... + 712174.

Almost surely, 2^6172142440 is an apocalyptic number.

It is an amenable number.

6172142440 is an abundant number, since it is smaller than the sum of its proper divisors (7842594560).

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

6172142440 is a wasteful number, since it uses less digits than its factorization.

6172142440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415749 (or 1415745 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 6172142440 is about 78562.9839046354. The cubic root of 6172142440 is about 1834.3349747107.

The spelling of 6172142440 in words is "six billion, one hundred seventy-two million, one hundred forty-two thousand, four hundred forty".