619938441 has 72 divisors (see below), whose sum is σ = 1011838464. Its totient is φ = 378963360.

The previous prime is 619938437. The next prime is 619938443. The reversal of 619938441 is 144839916.

It is not a de Polignac number, because 619938441 - 2² = 619938437 is a prime.

It is not an unprimeable number, because it can be changed into a prime (619938443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3245656 + ... + 3245846.

It is an arithmetic number, because the mean of its divisors is an integer number (14053312).

Almost surely, 2^619938441 is an apocalyptic number.

It is an amenable number.

619938441 is a deficient number, since it is larger than the sum of its proper divisors (391900023).

619938441 is a wasteful number, since it uses less digits than its factorization.

619938441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 250 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 619938441 is about 24898.5630308257. The cubic root of 619938441 is about 852.6736761704.

The spelling of 619938441 in words is "six hundred nineteen million, nine hundred thirty-eight thousand, four hundred forty-one".