3157444646 has 24 divisors (see below), whose sum is σ = 5249921040. Its totient is φ = 1421247872.

The previous prime is 3157444637. The next prime is 3157444651. The reversal of 3157444646 is 6464447513.

It is a junction number, because it is equal to n+sod(n) for n = 3157444597 and 3157444606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105461 + ... + 132048.

It is an arithmetic number, because the mean of its divisors is an integer number (218746710).

Almost surely, 2^3157444646 is an apocalyptic number.

3157444646 is a deficient number, since it is larger than the sum of its proper divisors (2092476394).

3157444646 is a wasteful number, since it uses less digits than its factorization.

3157444646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237568 (or 237551 counting only the distinct ones).

The product of its digits is 967680, while the sum is 44.

The square root of 3157444646 is about 56191.1438395767. The cubic root of 3157444646 is about 1467.0511242018.

The spelling of 3157444646 in words is "three billion, one hundred fifty-seven million, four hundred forty-four thousand, six hundred forty-six".