1827372020 has 12 divisors (see below), whose sum is σ = 3837481284. Its totient is φ = 730948800.

The previous prime is 1827372017. The next prime is 1827372023. The reversal of 1827372020 is 202737281.

It is an interprime number because it is at equal distance from previous prime (1827372017) and next prime (1827372023).

It can be written as a sum of positive squares in 2 ways, for example, as 780978916 + 1046393104 = 27946^2 + 32348^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1827372023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45684281 + ... + 45684320.

It is an arithmetic number, because the mean of its divisors is an integer number (319790107).

Almost surely, 2^1827372020 is an apocalyptic number.

1827372020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1827372020 is an abundant number, since it is smaller than the sum of its proper divisors (2010109264).

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

1827372020 is a wasteful number, since it uses less digits than its factorization.

1827372020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91368610 (or 91368608 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 1827372020 is about 42747.7721056899. The cubic root of 1827372020 is about 1222.5754114205.

The spelling of 1827372020 in words is "one billion, eight hundred twenty-seven million, three hundred seventy-two thousand, twenty".