70723442 has 8 divisors (see below), whose sum is σ = 108672732. Its totient is φ = 34499200.

The previous prime is 70723441. The next prime is 70723487. The reversal of 70723442 is 24432707.

It can be written as a sum of positive squares in 2 ways, for example, as 47210641 + 23512801 = 6871^2 + 4849^2 .

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

It is not an unprimeable number, because it can be changed into a prime (70723441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431159 + ... + 431322.

Almost surely, 2^70723442 is an apocalyptic number.

70723442 is a deficient number, since it is larger than the sum of its proper divisors (37949290).

70723442 is a wasteful number, since it uses less digits than its factorization.

70723442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862524.

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 70723442 is about 8409.7230632168. The cubic root of 70723442 is about 413.5434339134.

The spelling of 70723442 in words is "seventy million, seven hundred twenty-three thousand, four hundred forty-two".