70404146 has 4 divisors (see below), whose sum is σ = 105606222. Its totient is φ = 35202072.

The previous prime is 70404143. The next prime is 70404149. The reversal of 70404146 is 64140407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64140407 = 457 ⋅140351.

It is an interprime number because it is at equal distance from previous prime (70404143) and next prime (70404149).

It can be written as a sum of positive squares in only one way, i.e., 52722121 + 17682025 = 7261^2 + 4205^2 .

It is not an unprimeable number, because it can be changed into a prime (70404143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17601035 + ... + 17601038.

Almost surely, 2^70404146 is an apocalyptic number.

70404146 is a deficient number, since it is larger than the sum of its proper divisors (35202076).

70404146 is a wasteful number, since it uses less digits than its factorization.

70404146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35202075.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 70404146 is about 8390.7178477172. The cubic root of 70404146 is about 412.9201517684.

The spelling of 70404146 in words is "seventy million, four hundred four thousand, one hundred forty-six".