30421601 has 6 divisors (see below), whose sum is σ = 35388450. Its totient is φ = 26075616.

The previous prime is 30421591. The next prime is 30421607. The reversal of 30421601 is 10612403.

It can be written as a sum of positive squares in only one way, i.e., 30195025 + 226576 = 5495^2 + 476^2 .

It is not a de Polignac number, because 30421601 - 2⁶ = 30421537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30421601.

It is not an unprimeable number, because it can be changed into a prime (30421607) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 310376 + ... + 310473.

It is an arithmetic number, because the mean of its divisors is an integer number (5898075).

Almost surely, 2^30421601 is an apocalyptic number.

It is an amenable number.

30421601 is a deficient number, since it is larger than the sum of its proper divisors (4966849).

30421601 is an equidigital number, since it uses as much as digits as its factorization.

30421601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620863 (or 620856 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 30421601 is about 5515.5780295450. The cubic root of 30421601 is about 312.1720540450.

The spelling of 30421601 in words is "thirty million, four hundred twenty-one thousand, six hundred one".