70283438 has 4 divisors (see below), whose sum is σ = 105425160. Its totient is φ = 35141718.

The previous prime is 70283419. The next prime is 70283441. The reversal of 70283438 is 83438207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83438207 = 47 ⋅1775281.

It is a junction number, because it is equal to n+sod(n) for n = 70283398 and 70283407.

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 as a sum of consecutive naturals, namely, 17570858 + ... + 17570861.

It is an arithmetic number, because the mean of its divisors is an integer number (26356290).

Almost surely, 2^70283438 is an apocalyptic number.

70283438 is a deficient number, since it is larger than the sum of its proper divisors (35141722).

70283438 is a wasteful number, since it uses less digits than its factorization.

70283438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35141721.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 70283438 is about 8383.5218136533. The cubic root of 70283438 is about 412.6840327289.

The spelling of 70283438 in words is "seventy million, two hundred eighty-three thousand, four hundred thirty-eight".