71346540 has 24 divisors (see below), whose sum is σ = 199770480. Its totient is φ = 19025728.

The previous prime is 71346523. The next prime is 71346547. The reversal of 71346540 is 4564317.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 71346498 and 71346507.

It is not an unprimeable number, because it can be changed into a prime (71346547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594495 + ... + 594614.

It is an arithmetic number, because the mean of its divisors is an integer number (8323770).

Almost surely, 2^71346540 is an apocalyptic number.

It is an amenable number.

71346540 is an abundant number, since it is smaller than the sum of its proper divisors (128423940).

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

71346540 is a wasteful number, since it uses less digits than its factorization.

71346540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189121 (or 1189119 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 71346540 is about 8446.6881083653. The cubic root of 71346540 is about 414.7543715097.

The spelling of 71346540 in words is "seventy-one million, three hundred forty-six thousand, five hundred forty".