70344434 has 4 divisors (see below), whose sum is σ = 105516654. Its totient is φ = 35172216.

The previous prime is 70344433. The next prime is 70344493. The reversal of 70344434 is 43444307.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43444307 = 269 ⋅161503.

It can be written as a sum of positive squares in only one way, i.e., 53246209 + 17098225 = 7297^2 + 4135^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70344397 and 70344406.

It is not an unprimeable number, because it can be changed into a prime (70344433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17586107 + ... + 17586110.

Almost surely, 2^70344434 is an apocalyptic number.

70344434 is a deficient number, since it is larger than the sum of its proper divisors (35172220).

70344434 is a wasteful number, since it uses less digits than its factorization.

70344434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35172219.

The product of its (nonzero) digits is 16128, while the sum is 29.

The square root of 70344434 is about 8387.1588753284. The cubic root of 70344434 is about 412.8033818366.

The spelling of 70344434 in words is "seventy million, three hundred forty-four thousand, four hundred thirty-four".