1906866764 has 12 divisors (see below), whose sum is σ = 3640382088. Its totient is φ = 866757600.

The previous prime is 1906866763. The next prime is 1906866781. The reversal of 1906866764 is 4676686091.

It is a super-2 number, since 2×1906866764² = 7272281711295663392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1906866763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21668897 + ... + 21668984.

It is an arithmetic number, because the mean of its divisors is an integer number (303365174).

Almost surely, 2^1906866764 is an apocalyptic number.

It is an amenable number.

1906866764 is a deficient number, since it is larger than the sum of its proper divisors (1733515324).

1906866764 is a wasteful number, since it uses less digits than its factorization.

1906866764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43337896 (or 43337894 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 53.

The square root of 1906866764 is about 43667.6855809877. The cubic root of 1906866764 is about 1240.0526261050.

The spelling of 1906866764 in words is "one billion, nine hundred six million, eight hundred sixty-six thousand, seven hundred sixty-four".