492269778 has 192 divisors, whose sum is σ = 1496154240. Its totient is φ = 117936000.

The previous prime is 492269773. The next prime is 492269779. The reversal of 492269778 is 877962294.

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

It is not an unprimeable number, because it can be changed into a prime (492269773) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 377728 + ... + 379028.

It is an arithmetic number, because the mean of its divisors is an integer number (7792470).

Almost surely, 2^492269778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 492269778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748077120).

492269778 is an abundant number, since it is smaller than the sum of its proper divisors (1003884462).

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

492269778 is a wasteful number, since it uses less digits than its factorization.

492269778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350 (or 1337 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 492269778 is about 22187.1534451808. The cubic root of 492269778 is about 789.5889428058.

The spelling of 492269778 in words is "four hundred ninety-two million, two hundred sixty-nine thousand, seven hundred seventy-eight".