619338492 has 72 divisors (see below), whose sum is σ = 1661233392. Its totient is φ = 193881600.

The previous prime is 619338481. The next prime is 619338493. The reversal of 619338492 is 294833916.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (619338493) 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 23 ways as a sum of consecutive naturals, for example, 403767 + ... + 405297.

It is an arithmetic number, because the mean of its divisors is an integer number (23072686).

Almost surely, 2^619338492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 619338492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (830616696).

619338492 is an abundant number, since it is smaller than the sum of its proper divisors (1041894900).

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

619338492 is a wasteful number, since it uses less digits than its factorization.

619338492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219 (or 2214 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 619338492 is about 24886.5122506148. The cubic root of 619338492 is about 852.3985274372.

The spelling of 619338492 in words is "six hundred nineteen million, three hundred thirty-eight thousand, four hundred ninety-two".