30404620 has 48 divisors (see below), whose sum is σ = 67209408. Its totient is φ = 11531520.

The previous prime is 30404611. The next prime is 30404623. The reversal of 30404620 is 2640403.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (30404623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72010 + ... + 72430.

It is an arithmetic number, because the mean of its divisors is an integer number (1400196).

Almost surely, 2^30404620 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 30404620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33604704).

30404620 is an abundant number, since it is smaller than the sum of its proper divisors (36804788).

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

30404620 is a wasteful number, since it uses less digits than its factorization.

30404620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 30404620 is about 5514.0384474539. The cubic root of 30404620 is about 312.1139595760.

The spelling of 30404620 in words is "thirty million, four hundred four thousand, six hundred twenty".