306421401 has 32 divisors (see below), whose sum is σ = 482291712. Its totient is φ = 170602560.

The previous prime is 306421399. The next prime is 306421411. The reversal of 306421401 is 104124603.

It is not a de Polignac number, because 306421401 - 2¹ = 306421399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (306421411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94066 + ... + 97268.

It is an arithmetic number, because the mean of its divisors is an integer number (15071616).

Almost surely, 2^306421401 is an apocalyptic number.

It is an amenable number.

306421401 is a deficient number, since it is larger than the sum of its proper divisors (175870311).

306421401 is a wasteful number, since it uses less digits than its factorization.

306421401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3453.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 306421401 is about 17504.8964864120. The cubic root of 306421401 is about 674.1756015025.

The spelling of 306421401 in words is "three hundred six million, four hundred twenty-one thousand, four hundred one".