70045394 has 4 divisors (see below), whose sum is σ = 105068094. Its totient is φ = 35022696.

The previous prime is 70045379. The next prime is 70045433. The reversal of 70045394 is 49354007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49354007 = 3389 ⋅14563.

It can be written as a sum of positive squares in only one way, i.e., 69939769 + 105625 = 8363^2 + 325^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 70045394.

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 as a sum of consecutive naturals, namely, 17511347 + ... + 17511350.

Almost surely, 2^70045394 is an apocalyptic number.

70045394 is a deficient number, since it is larger than the sum of its proper divisors (35022700).

70045394 is a wasteful number, since it uses less digits than its factorization.

70045394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35022699.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 70045394 is about 8369.3126360532. The cubic root of 70045394 is about 412.2175972187.

The spelling of 70045394 in words is "seventy million, forty-five thousand, three hundred ninety-four".