1913147392 has 208 divisors, whose sum is σ = 4550264320. Its totient is φ = 796262400.

The previous prime is 1913147381. The next prime is 1913147407. The reversal of 1913147392 is 2937413191.

It is a tau number, because it is divible by the number of its divisors (208).

Its product of digits (40824) is a multiple of the sum of its prime divisors (126).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31363042 + ... + 31363102.

Almost surely, 2^1913147392 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 1913147392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2275132160).

1913147392 is an abundant number, since it is smaller than the sum of its proper divisors (2637116928).

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

1913147392 is a wasteful number, since it uses less digits than its factorization.

1913147392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 126 counting only the distinct ones).

The product of its digits is 40824, while the sum is 40.

The square root of 1913147392 is about 43739.5403725279. The cubic root of 1913147392 is about 1241.4125837496.

The spelling of 1913147392 in words is "one billion, nine hundred thirteen million, one hundred forty-seven thousand, three hundred ninety-two".