70814538 has 24 divisors (see below), whose sum is σ = 153586368. Its totient is φ = 23581032.

The previous prime is 70814533. The next prime is 70814581. The reversal of 70814538 is 83541807.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (70814531) 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 11 ways as a sum of consecutive naturals, for example, 33295 + ... + 35357.

It is an arithmetic number, because the mean of its divisors is an integer number (6399432).

Almost surely, 2^70814538 is an apocalyptic number.

70814538 is an abundant number, since it is smaller than the sum of its proper divisors (82771830).

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

70814538 is a wasteful number, since it uses less digits than its factorization.

70814538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3978 (or 3975 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 70814538 is about 8415.1374320328. The cubic root of 70814538 is about 413.7209139139.

The spelling of 70814538 in words is "seventy million, eight hundred fourteen thousand, five hundred thirty-eight".