70068390 has 128 divisors (see below), whose sum is σ = 214410240. Its totient is φ = 14266368.

The previous prime is 70068389. The next prime is 70068391. The reversal of 70068390 is 9386007.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70068389) and next prime (70068391).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70068391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 67314 + ... + 68346.

It is an arithmetic number, because the mean of its divisors is an integer number (1675080).

Almost surely, 2^70068390 is an apocalyptic number.

70068390 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 70068390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107205120).

70068390 is an abundant number, since it is smaller than the sum of its proper divisors (144341850).

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

70068390 is a wasteful number, since it uses less digits than its factorization.

70068390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 70068390 is about 8370.6863517874. The cubic root of 70068390 is about 412.2627028193.

The spelling of 70068390 in words is "seventy million, sixty-eight thousand, three hundred ninety".