70566442 has 4 divisors (see below), whose sum is σ = 105849666. Its totient is φ = 35283220.

The previous prime is 70566401. The next prime is 70566451. The reversal of 70566442 is 24466507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24466507 = 13 ⋅1882039.

It can be written as a sum of positive squares in only one way, i.e., 70207641 + 358801 = 8379^2 + 599^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70566398 and 70566407.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17641609 + ... + 17641612.

Almost surely, 2^70566442 is an apocalyptic number.

70566442 is a deficient number, since it is larger than the sum of its proper divisors (35283224).

70566442 is a wasteful number, since it uses less digits than its factorization.

70566442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35283223.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 70566442 is about 8400.3834436292. The cubic root of 70566442 is about 413.2371968287.

The spelling of 70566442 in words is "seventy million, five hundred sixty-six thousand, four hundred forty-two".