70256340 has 288 divisors, whose sum is σ = 274869504. Its totient is φ = 14100480.

The previous prime is 70256327. The next prime is 70256363. The reversal of 70256340 is 4365207.

It is a happy number.

70256340 is a `hidden beast` number, since 7 + 0 + 25 + 634 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 512752 + ... + 512888.

It is an arithmetic number, because the mean of its divisors is an integer number (954408).

Almost surely, 2^70256340 is an apocalyptic number.

70256340 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 70256340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137434752).

70256340 is an abundant number, since it is smaller than the sum of its proper divisors (204613164).

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

70256340 is a wasteful number, since it uses less digits than its factorization.

70256340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 70256340 is about 8381.9055112784. The cubic root of 70256340 is about 412.6309887034.

The spelling of 70256340 in words is "seventy million, two hundred fifty-six thousand, three hundred forty".