70086240 has 288 divisors, whose sum is σ = 290122560. Its totient is φ = 15040512.

The previous prime is 70086239. The next prime is 70086241. The reversal of 70086240 is 4268007.

It is an interprime number because it is at equal distance from previous prime (70086239) and next prime (70086241).

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70086241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 171156 + ... + 171564.

It is an arithmetic number, because the mean of its divisors is an integer number (1007370).

Almost surely, 2^70086240 is an apocalyptic number.

70086240 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 70086240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145061280).

70086240 is an abundant number, since it is smaller than the sum of its proper divisors (220036320).

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

70086240 is a wasteful number, since it uses less digits than its factorization.

70086240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 70086240 is about 8371.7525047029. The cubic root of 70086240 is about 412.2977079737.

The spelling of 70086240 in words is "seventy million, eighty-six thousand, two hundred forty".