619490368 has 56 divisors (see below), whose sum is σ = 1418929344. Its totient is φ = 262848000.

The previous prime is 619490359. The next prime is 619490413. The reversal of 619490368 is 863094916.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38403 + ... + 52093.

It is an arithmetic number, because the mean of its divisors is an integer number (25338024).

Almost surely, 2^619490368 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 619490368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709464672).

619490368 is an abundant number, since it is smaller than the sum of its proper divisors (799438976).

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

619490368 is a wasteful number, since it uses less digits than its factorization.

619490368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13811 (or 13801 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 619490368 is about 24889.5634353036. The cubic root of 619490368 is about 852.4681976309.

The spelling of 619490368 in words is "six hundred nineteen million, four hundred ninety thousand, three hundred sixty-eight".