70710240 has 96 divisors (see below), whose sum is σ = 228233376. Its totient is φ = 18391040.

The previous prime is 70710223. The next prime is 70710251. The reversal of 70710240 is 4201707.

It is a tau number, because it is divible by the number of its divisors (96).

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, 17884 + ... + 21476.

It is an arithmetic number, because the mean of its divisors is an integer number (2377431).

Almost surely, 2^70710240 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 70710240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114116688).

70710240 is an abundant number, since it is smaller than the sum of its proper divisors (157523136).

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

70710240 is a wasteful number, since it uses less digits than its factorization.

70710240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3652 (or 3644 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 70710240 is about 8408.9381018057. The cubic root of 70710240 is about 413.5177001538.

Adding to 70710240 its reverse (4201707), we get a palindrome (74911947).

The spelling of 70710240 in words is "seventy million, seven hundred ten thousand, two hundred forty".