70066840 has 16 divisors (see below), whose sum is σ = 157650480. Its totient is φ = 28026720.

The previous prime is 70066817. The next prime is 70066849. The reversal of 70066840 is 4866007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70066849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875796 + ... + 875875.

It is an arithmetic number, because the mean of its divisors is an integer number (9853155).

Almost surely, 2^70066840 is an apocalyptic number.

It is an amenable number.

70066840 is an abundant number, since it is smaller than the sum of its proper divisors (87583640).

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

70066840 is a wasteful number, since it uses less digits than its factorization.

70066840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751682 (or 1751678 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 70066840 is about 8370.5937662749. The cubic root of 70066840 is about 412.2596628755.

The spelling of 70066840 in words is "seventy million, sixty-six thousand, eight hundred forty".