70278394 has 8 divisors (see below), whose sum is σ = 105778260. Its totient is φ = 35018976.

The previous prime is 70278389. The next prime is 70278407. The reversal of 70278394 is 49387207.

It can be written as a sum of positive squares in 2 ways, for example, as 68807025 + 1471369 = 8295^2 + 1213^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59379 + ... + 60550.

Almost surely, 2^70278394 is an apocalyptic number.

70278394 is a deficient number, since it is larger than the sum of its proper divisors (35499866).

70278394 is a wasteful number, since it uses less digits than its factorization.

70278394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120224.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 70278394 is about 8383.2209800291. The cubic root of 70278394 is about 412.6741601893.

The spelling of 70278394 in words is "seventy million, two hundred seventy-eight thousand, three hundred ninety-four".