619972044 has 24 divisors (see below), whose sum is σ = 1447042800. Its totient is φ = 206594304.

The previous prime is 619972039. The next prime is 619972091. The reversal of 619972044 is 440279916.

It is a junction number, because it is equal to n+sod(n) for n = 619971987 and 619972005.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 50232 + ... + 61344.

It is an arithmetic number, because the mean of its divisors is an integer number (60293450).

Almost surely, 2^619972044 is an apocalyptic number.

It is an amenable number.

619972044 is an abundant number, since it is smaller than the sum of its proper divisors (827070756).

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

619972044 is a wasteful number, since it uses less digits than its factorization.

619972044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15769 (or 15767 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 619972044 is about 24899.2378196603. The cubic root of 619972044 is about 852.6890819343.

The spelling of 619972044 in words is "six hundred nineteen million, nine hundred seventy-two thousand, forty-four".