30001405 has 16 divisors (see below), whose sum is σ = 41727744. Its totient is φ = 20280960.

The previous prime is 30001403. The next prime is 30001427. The reversal of 30001405 is 50410003.

It is not a de Polignac number, because 30001405 - 2¹ = 30001403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30001403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3552 + ... + 8521.

It is an arithmetic number, because the mean of its divisors is an integer number (2607984).

Almost surely, 2^30001405 is an apocalyptic number.

30001405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30001405 is a deficient number, since it is larger than the sum of its proper divisors (11726339).

30001405 is a wasteful number, since it uses less digits than its factorization.

30001405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12156.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 30001405 is about 5477.3538319156. The cubic root of 30001405 is about 310.7281012549.

Adding to 30001405 its reverse (50410003), we get a palindrome (80411408).

The spelling of 30001405 in words is "thirty million, one thousand, four hundred five".