919478952 has 224 divisors, whose sum is σ = 2996743680. Its totient is φ = 258940800.

The previous prime is 919478947. The next prime is 919478953. The reversal of 919478952 is 259874919.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (1632960) is a multiple of the sum of its prime divisors (336).

It is not an unprimeable number, because it can be changed into a prime (919478953) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 4123113 + ... + 4123335.

It is an arithmetic number, because the mean of its divisors is an integer number (13378320).

Almost surely, 2^919478952 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 919478952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1498371840).

919478952 is an abundant number, since it is smaller than the sum of its proper divisors (2077264728).

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

919478952 is a wasteful number, since it uses less digits than its factorization.

919478952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 336 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The square root of 919478952 is about 30322.9113377987. The cubic root of 919478952 is about 972.4051808700.

The spelling of 919478952 in words is "nine hundred nineteen million, four hundred seventy-eight thousand, nine hundred fifty-two".