1906132656 has 40 divisors (see below), whose sum is σ = 4953682944. Its totient is φ = 631570240.

The previous prime is 1906132621. The next prime is 1906132693. The reversal of 1906132656 is 6562316091.

It is a super-2 number, since 2×1906132656² = 7266683404539228672, which contains 22 as substring.

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, 110880 + ... + 126911.

Almost surely, 2^1906132656 is an apocalyptic number.

1906132656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1906132656 is an abundant number, since it is smaller than the sum of its proper divisors (3047550288).

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

1906132656 is a wasteful number, since it uses less digits than its factorization.

1906132656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237969 (or 237963 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 1906132656 is about 43659.2791511724. The cubic root of 1906132656 is about 1239.8934733322.

The spelling of 1906132656 in words is "one billion, nine hundred six million, one hundred thirty-two thousand, six hundred fifty-six".