308418400 has 72 divisors (see below), whose sum is σ = 771372504. Its totient is φ = 120345600.

The previous prime is 308418377. The next prime is 308418401. The reversal of 308418400 is 4814803.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308418401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28099 + ... + 37501.

It is an arithmetic number, because the mean of its divisors is an integer number (10713507).

Almost surely, 2^308418400 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 308418400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385686252).

308418400 is an abundant number, since it is smaller than the sum of its proper divisors (462954104).

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

308418400 is a wasteful number, since it uses less digits than its factorization.

308418400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9464 (or 9451 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 308418400 is about 17561.8450055796. The cubic root of 308418400 is about 675.6370026903.

The spelling of 308418400 in words is "three hundred eight million, four hundred eighteen thousand, four hundred".