70819442 has 4 divisors (see below), whose sum is σ = 106229166. Its totient is φ = 35409720.

The previous prime is 70819439. The next prime is 70819451. The reversal of 70819442 is 24491807.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24491807 = 419 ⋅58453.

It can be written as a sum of positive squares in only one way, i.e., 67059721 + 3759721 = 8189^2 + 1939^2 .

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 as a sum of consecutive naturals, namely, 17704859 + ... + 17704862.

Almost surely, 2^70819442 is an apocalyptic number.

70819442 is a deficient number, since it is larger than the sum of its proper divisors (35409724).

70819442 is a wasteful number, since it uses less digits than its factorization.

70819442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35409723.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 70819442 is about 8415.4288066622. The cubic root of 70819442 is about 413.7304639328.

The spelling of 70819442 in words is "seventy million, eight hundred nineteen thousand, four hundred forty-two".