1646090536 has 32 divisors (see below), whose sum is σ = 3310178400. Its totient is φ = 765011520.

The previous prime is 1646090527. The next prime is 1646090557. The reversal of 1646090536 is 6350906461.

It is a super-2 number, since 2×1646090536² = 5419228105417534592, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94110 + ... + 110221.

It is an arithmetic number, because the mean of its divisors is an integer number (103443075).

Almost surely, 2^1646090536 is an apocalyptic number.

It is an amenable number.

1646090536 is an abundant number, since it is smaller than the sum of its proper divisors (1664087864).

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

1646090536 is a wasteful number, since it uses less digits than its factorization.

1646090536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204409 (or 204405 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 1646090536 is about 40572.0413092563. The cubic root of 1646090536 is about 1180.7317437803.

Adding to 1646090536 its reverse (6350906461), we get a palindrome (7996996997).

The spelling of 1646090536 in words is "one billion, six hundred forty-six million, ninety thousand, five hundred thirty-six".