3143272640 has 28 divisors (see below), whose sum is σ = 7484918736. Its totient is φ = 1257308928.

The previous prime is 3143272637. The next prime is 3143272651. The reversal of 3143272640 is 462723413.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 3143272597 and 3143272606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4911044 + ... + 4911683.

Almost surely, 2^3143272640 is an apocalyptic number.

It is an amenable number.

3143272640 is an abundant number, since it is smaller than the sum of its proper divisors (4341646096).

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

3143272640 is an equidigital number, since it uses as much as digits as its factorization.

3143272640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9822744 (or 9822734 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 3143272640 is about 56064.8966823270. The cubic root of 3143272640 is about 1464.8529076110.

The spelling of 3143272640 in words is "three billion, one hundred forty-three million, two hundred seventy-two thousand, six hundred forty".