1806340332 has 18 divisors (see below), whose sum is σ = 4215137668. Its totient is φ = 602064368.

The previous prime is 1806340307. The next prime is 1806340339. The reversal of 1806340332 is 2330436081.

It is a self number, because there is not a number n which added to its sum of digits gives 1806340332.

It is not an unprimeable number, because it can be changed into a prime (1806340339) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141094 + ... + 153362.

Almost surely, 2^1806340332 is an apocalyptic number.

1806340332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1806340332 is an abundant number, since it is smaller than the sum of its proper divisors (2408797336).

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

1806340332 is an frugal number, since it uses more digits than its factorization.

1806340332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24545 (or 12274 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1806340332 is about 42501.0627161251. The cubic root of 1806340332 is about 1217.8669913347.

The spelling of 1806340332 in words is "one billion, eight hundred six million, three hundred forty thousand, three hundred thirty-two".