71420002 has 8 divisors (see below), whose sum is σ = 107165916. Its totient is φ = 35698032.

The previous prime is 71419981. The next prime is 71420003. The reversal of 71420002 is 20002417.

It can be written as a sum of positive squares in 2 ways, for example, as 69372241 + 2047761 = 8329^2 + 1431^2 .

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

It is not an unprimeable number, because it can be changed into a prime (71420003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8148 + ... + 14464.

Almost surely, 2^71420002 is an apocalyptic number.

71420002 is a deficient number, since it is larger than the sum of its proper divisors (35745914).

71420002 is a wasteful number, since it uses less digits than its factorization.

71420002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11972.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 71420002 is about 8451.0355578473. The cubic root of 71420002 is about 414.8966733614.

Adding to 71420002 its reverse (20002417), we get a palindrome (91422419).

The spelling of 71420002 in words is "seventy-one million, four hundred twenty thousand, two".