70672740 has 96 divisors (see below), whose sum is σ = 211196160. Its totient is φ = 17596416.

The previous prime is 70672711. The next prime is 70672747. The reversal of 70672740 is 4727607.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (70672747) 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 31 ways as a sum of consecutive naturals, for example, 196681 + ... + 197039.

It is an arithmetic number, because the mean of its divisors is an integer number (2199960).

Almost surely, 2^70672740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70672740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105598080).

70672740 is an abundant number, since it is smaller than the sum of its proper divisors (140523420).

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

70672740 is a wasteful number, since it uses less digits than its factorization.

70672740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 33.

The square root of 70672740 is about 8406.7080358485. The cubic root of 70672740 is about 413.4445864820. Note that the first 3 decimals are identical.

The spelling of 70672740 in words is "seventy million, six hundred seventy-two thousand, seven hundred forty".