305411904 has 168 divisors, whose sum is σ = 1044732480. Its totient is φ = 87236352.

The previous prime is 305411903. The next prime is 305411983. The reversal of 305411904 is 409114503.

305411904 is a `hidden beast` number, since 30 + 541 + 1 + 90 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-2 number, since 2×305411904² = 186552862209810432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305411903) 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 23 ways as a sum of consecutive naturals, for example, 82869 + ... + 86475.

Almost surely, 2^305411904 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 305411904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (522366240).

305411904 is an abundant number, since it is smaller than the sum of its proper divisors (739320576).

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

305411904 is a wasteful number, since it uses less digits than its factorization.

305411904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642 (or 3619 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 305411904 is about 17476.0379949232. The cubic root of 305411904 is about 673.4344359071.

The spelling of 305411904 in words is "three hundred five million, four hundred eleven thousand, nine hundred four".