1821300960 has 48 divisors (see below), whose sum is σ = 5737099536. Its totient is φ = 485680128.

The previous prime is 1821300959. The next prime is 1821300961. The reversal of 1821300960 is 690031281.

It is an interprime number because it is at equal distance from previous prime (1821300959) and next prime (1821300961).

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1821300961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1896709 + ... + 1897668.

It is an arithmetic number, because the mean of its divisors is an integer number (119522907).

Almost surely, 2^1821300960 is an apocalyptic number.

1821300960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1821300960 is an abundant number, since it is smaller than the sum of its proper divisors (3915798576).

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

1821300960 is a wasteful number, since it uses less digits than its factorization.

1821300960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3794395 (or 3794387 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 1821300960 is about 42676.7027779795. The cubic root of 1821300960 is about 1221.2199925438.

The spelling of 1821300960 in words is "one billion, eight hundred twenty-one million, three hundred thousand, nine hundred sixty".