70293450240 has 320 divisors, whose sum is σ = 268898414400. Its totient is φ = 17302781952.

The previous prime is 70293450221. The next prime is 70293450247. The reversal of 70293450240 is 4205439207.

70293450240 is a `hidden beast` number, since 70 + 2 + 9 + 345 + 0 + 240 = 666.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 70293450195 and 70293450204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70293450247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 859446 + ... + 937674.

It is an arithmetic number, because the mean of its divisors is an integer number (840307545).

Almost surely, 2^70293450240 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 70293450240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134449207200).

70293450240 is an abundant number, since it is smaller than the sum of its proper divisors (198604964160).

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

70293450240 is a wasteful number, since it uses less digits than its factorization.

70293450240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78274 (or 78252 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

Adding to 70293450240 its reverse (4205439207), we get a palindrome (74498889447).

The spelling of 70293450240 in words is "seventy billion, two hundred ninety-three million, four hundred fifty thousand, two hundred forty".