70240380 has 96 divisors (see below), whose sum is σ = 230307840. Its totient is φ = 15659520.

The previous prime is 70240369. The next prime is 70240399. The reversal of 70240380 is 8304207.

It is a self number, because there is not a number n which added to its sum of digits gives 70240380.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15181 + ... + 19259.

It is an arithmetic number, because the mean of its divisors is an integer number (2399040).

Almost surely, 2^70240380 is an apocalyptic number.

70240380 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 70240380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115153920).

70240380 is an abundant number, since it is smaller than the sum of its proper divisors (160067460).

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

70240380 is a wasteful number, since it uses less digits than its factorization.

70240380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4139 (or 4137 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 70240380 is about 8380.9534063852. The cubic root of 70240380 is about 412.5997408031.

Adding to 70240380 its reverse (8304207), we get a palindrome (78544587).

The spelling of 70240380 in words is "seventy million, two hundred forty thousand, three hundred eighty".