619421696 has 56 divisors (see below), whose sum is σ = 1255068864. Its totient is φ = 305643520.

The previous prime is 619421683. The next prime is 619421713. The reversal of 619421696 is 696124916.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679481 + ... + 680391.

It is an arithmetic number, because the mean of its divisors is an integer number (22411944).

Almost surely, 2^619421696 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 619421696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627534432).

619421696 is an abundant number, since it is smaller than the sum of its proper divisors (635647168).

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

619421696 is an frugal number, since it uses more digits than its factorization.

619421696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020 (or 996 counting only the distinct ones).

The product of its digits is 139968, while the sum is 44.

The square root of 619421696 is about 24888.1838630303. The cubic root of 619421696 is about 852.4366970823.

The spelling of 619421696 in words is "six hundred nineteen million, four hundred twenty-one thousand, six hundred ninety-six".