1804974620 has 24 divisors (see below), whose sum is σ = 3838430400. Its totient is φ = 712850112.

The previous prime is 1804974607. The next prime is 1804974623. The reversal of 1804974620 is 264794081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804974623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569615 + ... + 572774.

It is an arithmetic number, because the mean of its divisors is an integer number (159934600).

Almost surely, 2^1804974620 is an apocalyptic number.

1804974620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1804974620 is an abundant number, since it is smaller than the sum of its proper divisors (2033455780).

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

1804974620 is a wasteful number, since it uses less digits than its factorization.

1804974620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142477 (or 1142475 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 1804974620 is about 42484.9928798393. The cubic root of 1804974620 is about 1217.5599847889.

The spelling of 1804974620 in words is "one billion, eight hundred four million, nine hundred seventy-four thousand, six hundred twenty".