1491594346 has 24 divisors (see below), whose sum is σ = 2464043652. Its totient is φ = 676684800.

The previous prime is 1491594337. The next prime is 1491594347. The reversal of 1491594346 is 6434951941.

It can be written as a sum of positive squares in 2 ways, for example, as 1483097121 + 8497225 = 38511^2 + 2915^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1491594296 and 1491594305.

It is not an unprimeable number, because it can be changed into a prime (1491594347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125226 + ... + 136618.

Almost surely, 2^1491594346 is an apocalyptic number.

1491594346 is a deficient number, since it is larger than the sum of its proper divisors (972449306).

1491594346 is a wasteful number, since it uses less digits than its factorization.

1491594346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11958 (or 11947 counting only the distinct ones).

The product of its digits is 466560, while the sum is 46.

The square root of 1491594346 is about 38621.1644827030. The cubic root of 1491594346 is about 1142.5719978185.

The spelling of 1491594346 in words is "one billion, four hundred ninety-one million, five hundred ninety-four thousand, three hundred forty-six".