1870216320 has 384 divisors, whose sum is σ = 7038195840. Its totient is φ = 421134336.

The previous prime is 1870216307. The next prime is 1870216321. The reversal of 1870216320 is 236120781.

It is a tau number, because it is divible by the number of its divisors (384).

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

It is not an unprimeable number, because it can be changed into a prime (1870216321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9690144 + ... + 9690336.

It is an arithmetic number, because the mean of its divisors is an integer number (18328635).

Almost surely, 2^1870216320 is an apocalyptic number.

1870216320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1870216320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3519097920).

1870216320 is an abundant number, since it is smaller than the sum of its proper divisors (5167979520).

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

1870216320 is a wasteful number, since it uses less digits than its factorization.

1870216320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 1870216320 is about 43245.9977338944. The cubic root of 1870216320 is about 1232.0564712407.

The spelling of 1870216320 in words is "one billion, eight hundred seventy million, two hundred sixteen thousand, three hundred twenty".