70543434 has 32 divisors (see below), whose sum is σ = 152349120. Its totient is φ = 21647232.

The previous prime is 70543393. The next prime is 70543439. The reversal of 70543434 is 43434507.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (70543439) 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, 34657 + ... + 36635.

It is an arithmetic number, because the mean of its divisors is an integer number (4760910).

Almost surely, 2^70543434 is an apocalyptic number.

70543434 is an abundant number, since it is smaller than the sum of its proper divisors (81805686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70543434 is a wasteful number, since it uses less digits than its factorization.

70543434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2454.

The product of its (nonzero) digits is 20160, while the sum is 30.

The square root of 70543434 is about 8399.0138706874. The cubic root of 70543434 is about 413.1922803185.

The spelling of 70543434 in words is "seventy million, five hundred forty-three thousand, four hundred thirty-four".