71420160 has 144 divisors (see below), whose sum is σ = 260781696. Its totient is φ = 16318464.

The previous prime is 71420159. The next prime is 71420161. The reversal of 71420160 is 6102417.

It is an interprime number because it is at equal distance from previous prime (71420159) and next prime (71420161).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (71420161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25552 + ... + 28208.

It is an arithmetic number, because the mean of its divisors is an integer number (1810984).

Almost surely, 2^71420160 is an apocalyptic number.

71420160 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71420160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130390848).

71420160 is an abundant number, since it is smaller than the sum of its proper divisors (189361536).

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

71420160 is a wasteful number, since it uses less digits than its factorization.

71420160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688 (or 2674 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 71420160 is about 8451.0449058090. The cubic root of 71420160 is about 414.8969793150.

Adding to 71420160 its reverse (6102417), we get a palindrome (77522577).

The spelling of 71420160 in words is "seventy-one million, four hundred twenty thousand, one hundred sixty".