30302071 has 12 divisors (see below), whose sum is σ = 31732272. Its totient is φ = 28933184.

The previous prime is 30302059. The next prime is 30302101. The reversal of 30302071 is 17020303.

It is not a de Polignac number, because 30302071 - 2¹⁵ = 30269303 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 (30302011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115086 + ... + 115348.

It is an arithmetic number, because the mean of its divisors is an integer number (2644356).

Almost surely, 2^30302071 is an apocalyptic number.

30302071 is a deficient number, since it is larger than the sum of its proper divisors (1430201).

30302071 is a wasteful number, since it uses less digits than its factorization.

30302071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 30302071 is about 5504.7316919174. The cubic root of 30302071 is about 311.7626639889.

Adding to 30302071 its reverse (17020303), we get a palindrome (47322374).

The spelling of 30302071 in words is "thirty million, three hundred two thousand, seventy-one".