71366420 has 18 divisors (see below), whose sum is σ = 149948862. Its totient is φ = 28531456.

The previous prime is 71366417. The next prime is 71366423. The reversal of 71366420 is 2466317.

It is an interprime number because it is at equal distance from previous prime (71366417) and next prime (71366423).

It can be written as a sum of positive squares in 3 ways, for example, as 6370576 + 64995844 = 2524^2 + 8062^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71366423) 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 5 ways as a sum of consecutive naturals, for example, 36836 + ... + 38724.

Almost surely, 2^71366420 is an apocalyptic number.

It is an amenable number.

71366420 is an abundant number, since it is smaller than the sum of its proper divisors (78582442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71366420 is an equidigital number, since it uses as much as digits as its factorization.

71366420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3787 (or 1896 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 71366420 is about 8447.8648189942. The cubic root of 71366420 is about 414.7928903185.

The spelling of 71366420 in words is "seventy-one million, three hundred sixty-six thousand, four hundred twenty".