70909242 has 16 divisors (see below), whose sum is σ = 145651872. Its totient is φ = 22997520.

The previous prime is 70909199. The next prime is 70909243. The reversal of 70909242 is 24290907.

It is not an unprimeable number, because it can be changed into a prime (70909243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159484 + ... + 159927.

It is an arithmetic number, because the mean of its divisors is an integer number (9103242).

Almost surely, 2^70909242 is an apocalyptic number.

70909242 is an abundant number, since it is smaller than the sum of its proper divisors (74742630).

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

70909242 is a wasteful number, since it uses less digits than its factorization.

70909242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319453.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 70909242 is about 8420.7625545434. The cubic root of 70909242 is about 413.9052619928.

The spelling of 70909242 in words is "seventy million, nine hundred nine thousand, two hundred forty-two".