1816008420 has 48 divisors (see below), whose sum is σ = 5260167360. Its totient is φ = 467569536.

The previous prime is 1816008319. The next prime is 1816008443. The reversal of 1816008420 is 248006181.

1816008420 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 520102 + ... + 523581.

It is an arithmetic number, because the mean of its divisors is an integer number (109586820).

Almost surely, 2^1816008420 is an apocalyptic number.

1816008420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1816008420 is an abundant number, since it is smaller than the sum of its proper divisors (3444158940).

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

1816008420 is a wasteful number, since it uses less digits than its factorization.

1816008420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043724 (or 1043722 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 1816008420 is about 42614.6502977556. The cubic root of 1816008420 is about 1220.0359256643.

The spelling of 1816008420 in words is "one billion, eight hundred sixteen million, eight thousand, four hundred twenty".