70305078 has 32 divisors (see below), whose sum is σ = 144789120. Its totient is φ = 22744640.

The previous prime is 70305031. The next prime is 70305101. The reversal of 70305078 is 87050307.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 55213 + ... + 56471.

It is an arithmetic number, because the mean of its divisors is an integer number (4524660).

Almost surely, 2^70305078 is an apocalyptic number.

70305078 is an abundant number, since it is smaller than the sum of its proper divisors (74484042).

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

70305078 is a wasteful number, since it uses less digits than its factorization.

70305078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 70305078 is about 8384.8123413706. The cubic root of 70305078 is about 412.7263829910.

The spelling of 70305078 in words is "seventy million, three hundred five thousand, seventy-eight".