70439434 has 32 divisors (see below), whose sum is σ = 118984320. Its totient is φ = 31050432.

The previous prime is 70439429. The next prime is 70439437. The reversal of 70439434 is 43493407.

It is a self number, because there is not a number n which added to its sum of digits gives 70439434.

It is not an unprimeable number, because it can be changed into a prime (70439437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77209 + ... + 78115.

It is an arithmetic number, because the mean of its divisors is an integer number (3718260).

Almost surely, 2^70439434 is an apocalyptic number.

70439434 is a deficient number, since it is larger than the sum of its proper divisors (48544886).

70439434 is a wasteful number, since it uses less digits than its factorization.

70439434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 70439434 is about 8392.8203841140. The cubic root of 70439434 is about 412.9891282581.

The spelling of 70439434 in words is "seventy million, four hundred thirty-nine thousand, four hundred thirty-four".