70307042 has 12 divisors (see below), whose sum is σ = 114197490. Its totient is φ = 32449248.

The previous prime is 70307023. The next prime is 70307047. The reversal of 70307042 is 24070307.

It can be written as a sum of positive squares in 3 ways, for example, as 26204161 + 44102881 = 5119^2 + 6641^2 .

It is a super-4 number, since 4×70307042⁴ (a number of 32 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70306999 and 70307017.

It is not an unprimeable number, because it can be changed into a prime (70307047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 103667 + ... + 104342.

Almost surely, 2^70307042 is an apocalyptic number.

70307042 is a deficient number, since it is larger than the sum of its proper divisors (43890448).

70307042 is a wasteful number, since it uses less digits than its factorization.

70307042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208037 (or 208024 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 70307042 is about 8384.9294570676. The cubic root of 70307042 is about 412.7302261798.

Adding to 70307042 its reverse (24070307), we get a palindrome (94377349).

The spelling of 70307042 in words is "seventy million, three hundred seven thousand, forty-two".