619834340 has 24 divisors (see below), whose sum is σ = 1370160960. Its totient is φ = 234884448.

The previous prime is 619834339. The next prime is 619834343. The reversal of 619834340 is 43438916.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 619834294 and 619834303.

It is not an unprimeable number, because it can be changed into a prime (619834343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815192 + ... + 815951.

It is an arithmetic number, because the mean of its divisors is an integer number (57090040).

Almost surely, 2^619834340 is an apocalyptic number.

It is an amenable number.

619834340 is an abundant number, since it is smaller than the sum of its proper divisors (750326620).

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

619834340 is a wasteful number, since it uses less digits than its factorization.

619834340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631171 (or 1631169 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 619834340 is about 24896.4724408901. The cubic root of 619834340 is about 852.6259460811.

The spelling of 619834340 in words is "six hundred nineteen million, eight hundred thirty-four thousand, three hundred forty".