619620620 has 12 divisors (see below), whose sum is σ = 1301203344. Its totient is φ = 247848240.

The previous prime is 619620613. The next prime is 619620649. The reversal of 619620620 is 26026916.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 15490496 + ... + 15490535.

It is an arithmetic number, because the mean of its divisors is an integer number (108433612).

Almost surely, 2^619620620 is an apocalyptic number.

It is an amenable number.

619620620 is an abundant number, since it is smaller than the sum of its proper divisors (681582724).

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

619620620 is a wasteful number, since it uses less digits than its factorization.

619620620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30981040 (or 30981038 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 619620620 is about 24892.1798965056. The cubic root of 619620620 is about 852.5279391605.

The spelling of 619620620 in words is "six hundred nineteen million, six hundred twenty thousand, six hundred twenty".