71430441 has 4 divisors (see below), whose sum is σ = 95240592. Its totient is φ = 47620292.

The previous prime is 71430419. The next prime is 71430449. The reversal of 71430441 is 14403417.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71430441 - 2¹³ = 71422249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71430449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11905071 + ... + 11905076.

It is an arithmetic number, because the mean of its divisors is an integer number (23810148).

Almost surely, 2^71430441 is an apocalyptic number.

It is an amenable number.

71430441 is a deficient number, since it is larger than the sum of its proper divisors (23810151).

71430441 is a wasteful number, since it uses less digits than its factorization.

71430441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23810150.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 71430441 is about 8451.6531518987. The cubic root of 71430441 is about 414.9168866315.

Adding to 71430441 its reverse (14403417), we get a palindrome (85833858).

The spelling of 71430441 in words is "seventy-one million, four hundred thirty thousand, four hundred forty-one".