919748456 has 64 divisors (see below), whose sum is σ = 1953331200. Its totient is φ = 402169600.

The previous prime is 919748443. The next prime is 919748477. The reversal of 919748456 is 654847919.

It is a junction number, because it is equal to n+sod(n) for n = 919748398 and 919748407.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 976946 + ... + 977886.

It is an arithmetic number, because the mean of its divisors is an integer number (30520800).

Almost surely, 2^919748456 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 919748456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (976665600).

919748456 is an abundant number, since it is smaller than the sum of its proper divisors (1033582744).

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

919748456 is a wasteful number, since it uses less digits than its factorization.

919748456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370 (or 1366 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The square root of 919748456 is about 30327.3549126857. The cubic root of 919748456 is about 972.5001772391.

The spelling of 919748456 in words is "nine hundred nineteen million, seven hundred forty-eight thousand, four hundred fifty-six".