30402071 has 8 divisors (see below), whose sum is σ = 36574080. Its totient is φ = 24687288.

The previous prime is 30402023. The next prime is 30402077. The reversal of 30402071 is 17020403.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30402071 - 2¹⁴ = 30385687 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 (30402077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114161 + ... + 114426.

It is an arithmetic number, because the mean of its divisors is an integer number (4571760).

Almost surely, 2^30402071 is an apocalyptic number.

30402071 is a deficient number, since it is larger than the sum of its proper divisors (6172009).

30402071 is a wasteful number, since it uses less digits than its factorization.

30402071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228613.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 30402071 is about 5513.8073053018. The cubic root of 30402071 is about 312.1052372095.

Adding to 30402071 its reverse (17020403), we get a palindrome (47422474).

The spelling of 30402071 in words is "thirty million, four hundred two thousand, seventy-one".