70842042 has 24 divisors (see below), whose sum is σ = 155219220. Its totient is φ = 23348160.

The previous prime is 70842007. The next prime is 70842053. The reversal of 70842042 is 24024807.

It can be written as a sum of positive squares in 2 ways, for example, as 68707521 + 2134521 = 8289^2 + 1461^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70841997 and 70842015.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20509 + ... + 23712.

Almost surely, 2^70842042 is an apocalyptic number.

70842042 is an abundant number, since it is smaller than the sum of its proper divisors (84377178).

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

70842042 is a wasteful number, since it uses less digits than its factorization.

70842042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44318 (or 44315 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 70842042 is about 8416.7714712947. The cubic root of 70842042 is about 413.7744693347.

Adding to 70842042 its reverse (24024807), we get a palindrome (94866849).

The spelling of 70842042 in words is "seventy million, eight hundred forty-two thousand, forty-two".