711407140 has 48 divisors (see below), whose sum is σ = 1543478832. Its totient is φ = 275222016.

The previous prime is 711407131. The next prime is 711407153. The reversal of 711407140 is 41704117.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 273174784 + 438232356 = 16528^2 + 20934^2 .

It is a super-2 number, since 2×711407140² = 1012200237685959200, which contains 22 as substring.

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, 125242 + ... + 130798.

It is an arithmetic number, because the mean of its divisors is an integer number (32155809).

Almost surely, 2^711407140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 711407140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (771739416).

711407140 is an abundant number, since it is smaller than the sum of its proper divisors (832071692).

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

711407140 is a wasteful number, since it uses less digits than its factorization.

711407140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5776 (or 5774 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 711407140 is about 26672.2166307939. The cubic root of 711407140 is about 892.7011067761.

The spelling of 711407140 in words is "seven hundred eleven million, four hundred seven thousand, one hundred forty".