1806019040 has 48 divisors (see below), whose sum is σ = 4876254432. Its totient is φ = 619206144.

The previous prime is 1806019031. The next prime is 1806019063. The reversal of 1806019040 is 409106081.

It is a junction number, because it is equal to n+sod(n) for n = 1806018994 and 1806019012.

It is a congruent number.

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, 805139 + ... + 807378.

It is an arithmetic number, because the mean of its divisors is an integer number (101588634).

Almost surely, 2^1806019040 is an apocalyptic number.

1806019040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1806019040 is an abundant number, since it is smaller than the sum of its proper divisors (3070235392).

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

1806019040 is a wasteful number, since it uses less digits than its factorization.

1806019040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612539 (or 1612531 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1806019040 is about 42497.2827366645. The cubic root of 1806019040 is about 1217.7947801136.

The spelling of 1806019040 in words is "one billion, eight hundred six million, nineteen thousand, forty".