1806136930 has 32 divisors (see below), whose sum is σ = 3535144704. Its totient is φ = 660401856.

The previous prime is 1806136921. The next prime is 1806137051. The reversal of 1806136930 is 396316081.

It is a self number, because there is not a number n which added to its sum of digits gives 1806136930.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54054 + ... + 80833.

It is an arithmetic number, because the mean of its divisors is an integer number (110473272).

Almost surely, 2^1806136930 is an apocalyptic number.

1806136930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1806136930 is a deficient number, since it is larger than the sum of its proper divisors (1729007774).

1806136930 is a wasteful number, since it uses less digits than its factorization.

1806136930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135010.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 1806136930 is about 42498.6697438873. The cubic root of 1806136930 is about 1217.8212771954.

The spelling of 1806136930 in words is "one billion, eight hundred six million, one hundred thirty-six thousand, nine hundred thirty".