308494900 has 144 divisors (see below), whose sum is σ = 806920576. Its totient is φ = 100154880.

The previous prime is 308494897. The next prime is 308494909. The reversal of 308494900 is 9494803.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 308494900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308494909) 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 47 ways as a sum of consecutive naturals, for example, 1113562 + ... + 1113838.

Almost surely, 2^308494900 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 308494900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403460288).

308494900 is an abundant number, since it is smaller than the sum of its proper divisors (498425676).

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

308494900 is a wasteful number, since it uses less digits than its factorization.

308494900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 308494900 is about 17564.0228877100. The cubic root of 308494900 is about 675.6928596668.

The spelling of 308494900 in words is "three hundred eight million, four hundred ninety-four thousand, nine hundred".