1649588964 has 24 divisors (see below), whose sum is σ = 3887153088. Its totient is φ = 544418400.

The previous prime is 1649588947. The next prime is 1649589001. The reversal of 1649588964 is 4698859461.

It is a super-2 number, since 2×1649588964² = 5442287500301186592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1649588898 and 1649588907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 679312 + ... + 681735.

It is an arithmetic number, because the mean of its divisors is an integer number (161964712).

Almost surely, 2^1649588964 is an apocalyptic number.

It is an amenable number.

1649588964 is an abundant number, since it is smaller than the sum of its proper divisors (2237564124).

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

1649588964 is a wasteful number, since it uses less digits than its factorization.

1649588964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361155 (or 1361153 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 60.

The square root of 1649588964 is about 40615.1322046353. The cubic root of 1649588964 is about 1181.5676196592.

The spelling of 1649588964 in words is "one billion, six hundred forty-nine million, five hundred eighty-eight thousand, nine hundred sixty-four".