70542636 has 12 divisors (see below), whose sum is σ = 164599512. Its totient is φ = 23514208.

The previous prime is 70542631. The next prime is 70542643. The reversal of 70542636 is 63624507.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 70542597 and 70542606.

It is not an unprimeable number, because it can be changed into a prime (70542631) 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 3 ways as a sum of consecutive naturals, for example, 2939265 + ... + 2939288.

It is an arithmetic number, because the mean of its divisors is an integer number (13716626).

Almost surely, 2^70542636 is an apocalyptic number.

It is an amenable number.

70542636 is an abundant number, since it is smaller than the sum of its proper divisors (94056876).

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

70542636 is a wasteful number, since it uses less digits than its factorization.

70542636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5878560 (or 5878558 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 70542636 is about 8398.9663649761. The cubic root of 70542636 is about 413.1907222775.

The spelling of 70542636 in words is "seventy million, five hundred forty-two thousand, six hundred thirty-six".