71385270 has 32 divisors (see below), whose sum is σ = 186900480. Its totient is φ = 17305440.

The previous prime is 71385263. The next prime is 71385341. The reversal of 71385270 is 7258317.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107830 + ... + 108489.

It is an arithmetic number, because the mean of its divisors is an integer number (5840640).

Almost surely, 2^71385270 is an apocalyptic number.

71385270 is an abundant number, since it is smaller than the sum of its proper divisors (115515210).

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

71385270 is a wasteful number, since it uses less digits than its factorization.

71385270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216340.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 71385270 is about 8448.9804118604. The cubic root of 71385270 is about 414.8294068282.

The spelling of 71385270 in words is "seventy-one million, three hundred eighty-five thousand, two hundred seventy".