71746340 has 12 divisors (see below), whose sum is σ = 150667356. Its totient is φ = 28698528.

The previous prime is 71746333. The next prime is 71746343. The reversal of 71746340 is 4364717.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 57123364 + 14622976 = 7558^2 + 3824^2 .

It is a junction number, because it is equal to n+sod(n) for n = 71746297 and 71746306.

It is not an unprimeable number, because it can be changed into a prime (71746343) 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, 1793639 + ... + 1793678.

It is an arithmetic number, because the mean of its divisors is an integer number (12555613).

Almost surely, 2^71746340 is an apocalyptic number.

It is an amenable number.

71746340 is an abundant number, since it is smaller than the sum of its proper divisors (78921016).

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

71746340 is a wasteful number, since it uses less digits than its factorization.

71746340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3587326 (or 3587324 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 71746340 is about 8470.3211273245. The cubic root of 71746340 is about 415.5276396972.

The spelling of 71746340 in words is "seventy-one million, seven hundred forty-six thousand, three hundred forty".