619870212 has 144 divisors (see below), whose sum is σ = 1828068480. Its totient is φ = 180543168.

The previous prime is 619870189. The next prime is 619870271. The reversal of 619870212 is 212078916.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 506233 + ... + 507455.

It is an arithmetic number, because the mean of its divisors is an integer number (12694920).

Almost surely, 2^619870212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 619870212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (914034240).

619870212 is an abundant number, since it is smaller than the sum of its proper divisors (1208198268).

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

619870212 is a wasteful number, since it uses less digits than its factorization.

619870212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287 (or 1260 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 619870212 is about 24897.1928538139. The cubic root of 619870212 is about 852.6423939210.

The spelling of 619870212 in words is "six hundred nineteen million, eight hundred seventy thousand, two hundred twelve".