392298816 has 112 divisors (see below), whose sum is σ = 1277542784. Its totient is φ = 103458816.

The previous prime is 392298811. The next prime is 392298839. The reversal of 392298816 is 618892293.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×392298816² = 307796722070003712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392298811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6246 + ... + 28698.

It is an arithmetic number, because the mean of its divisors is an integer number (11406632).

Almost surely, 2^392298816 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 392298816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638771392).

392298816 is an abundant number, since it is smaller than the sum of its proper divisors (885243968).

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

392298816 is a wasteful number, since it uses less digits than its factorization.

392298816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22488 (or 22478 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 392298816 is about 19806.5346792416. The cubic root of 392298816 is about 732.0470572036.

The spelling of 392298816 in words is "three hundred ninety-two million, two hundred ninety-eight thousand, eight hundred sixteen".