71376340 has 72 divisors (see below), whose sum is σ = 175786632. Its totient is φ = 24272640.

The previous prime is 71376329. The next prime is 71376343. The reversal of 71376340 is 4367317.

It can be written as a sum of positive squares in 4 ways, for example, as 2917264 + 68459076 = 1708^2 + 8274^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71376343) 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 23 ways as a sum of consecutive naturals, for example, 169330 + ... + 169750.

It is an arithmetic number, because the mean of its divisors is an integer number (2441481).

Almost surely, 2^71376340 is an apocalyptic number.

71376340 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 71376340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87893316).

71376340 is an abundant number, since it is smaller than the sum of its proper divisors (104410292).

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

71376340 is a wasteful number, since it uses less digits than its factorization.

71376340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 71376340 is about 8448.4519291998. The cubic root of 71376340 is about 414.8121082964.

The spelling of 71376340 in words is "seventy-one million, three hundred seventy-six thousand, three hundred forty".