70109426 has 8 divisors (see below), whose sum is σ = 107729244. Its totient is φ = 34199680.

The previous prime is 70109401. The next prime is 70109437. The reversal of 70109426 is 62490107.

It can be written as a sum of positive squares in 2 ways, for example, as 65593801 + 4515625 = 8099^2 + 2125^2 .

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

It is a super-2 number, since 2×70109426² = 9830663228098952, which contains 22 as substring.

It is a Curzon number.

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, 427415 + ... + 427578.

Almost surely, 2^70109426 is an apocalyptic number.

70109426 is a deficient number, since it is larger than the sum of its proper divisors (37619818).

70109426 is a wasteful number, since it uses less digits than its factorization.

70109426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855036.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 70109426 is about 8373.1371659612. The cubic root of 70109426 is about 412.3431685410.

The spelling of 70109426 in words is "seventy million, one hundred nine thousand, four hundred twenty-six".