619616940 has 24 divisors (see below), whose sum is σ = 1734927600. Its totient is φ = 165231168.

The previous prime is 619616939. The next prime is 619616951. The reversal of 619616940 is 49616916.

It is a junction number, because it is equal to n+sod(n) for n = 619616892 and 619616901.

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, 5163415 + ... + 5163534.

It is an arithmetic number, because the mean of its divisors is an integer number (72288650).

Almost surely, 2^619616940 is an apocalyptic number.

619616940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

619616940 is an abundant number, since it is smaller than the sum of its proper divisors (1115310660).

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

619616940 is a wasteful number, since it uses less digits than its factorization.

619616940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10326961 (or 10326959 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 619616940 is about 24892.1059775986. The cubic root of 619616940 is about 852.5262514025.

The spelling of 619616940 in words is "six hundred nineteen million, six hundred sixteen thousand, nine hundred forty".