619398612 has 54 divisors (see below), whose sum is σ = 1821332058. Its totient is φ = 176970528.

The previous prime is 619398607. The next prime is 619398629. The reversal of 619398612 is 216893916.

It is a happy number.

619398612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 361988676 + 257409936 = 19026^2 + 16044^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 173803 + ... + 177330.

Almost surely, 2^619398612 is an apocalyptic number.

It is an amenable number.

619398612 is an abundant number, since it is smaller than the sum of its proper divisors (1201933446).

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

619398612 is a wasteful number, since it uses less digits than its factorization.

619398612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351157 (or 351145 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 619398612 is about 24887.7201045013. The cubic root of 619398612 is about 852.4261076926.

The spelling of 619398612 in words is "six hundred nineteen million, three hundred ninety-eight thousand, six hundred twelve".