1649295936 has 84 divisors (see below), whose sum is σ = 5005521612. Its totient is φ = 517423104.

The previous prime is 1649295871. The next prime is 1649295943. The reversal of 1649295936 is 6395929461.

1649295936 is a `hidden beast` number, since 1 + 6 + 49 + 2 + 9 + 593 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 647193600 + 1002102336 = 25440^2 + 31656^2 .

It is a super-2 number, since 2×1649295936² = 5440354169012232192, which contains 22 as substring.

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, 74425 + ... + 94008.

It is an arithmetic number, because the mean of its divisors is an integer number (59589543).

Almost surely, 2^1649295936 is an apocalyptic number.

1649295936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1649295936 is an abundant number, since it is smaller than the sum of its proper divisors (3356225676).

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

1649295936 is a wasteful number, since it uses less digits than its factorization.

1649295936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168468 (or 168455 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The square root of 1649295936 is about 40611.5246697289. The cubic root of 1649295936 is about 1181.4976521487.

The spelling of 1649295936 in words is "one billion, six hundred forty-nine million, two hundred ninety-five thousand, nine hundred thirty-six".