70491944 has 16 divisors (see below), whose sum is σ = 132386400. Its totient is φ = 35188912.

The previous prime is 70491943. The next prime is 70491947. The reversal of 70491944 is 44919407.

It is a super-3 number, since 3×70491944³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 70491898 and 70491907.

It is not an unprimeable number, because it can be changed into a prime (70491943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1634 + ... + 11985.

It is an arithmetic number, because the mean of its divisors is an integer number (8274150).

Almost surely, 2^70491944 is an apocalyptic number.

It is an amenable number.

70491944 is a deficient number, since it is larger than the sum of its proper divisors (61894456).

70491944 is a wasteful number, since it uses less digits than its factorization.

70491944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14272 (or 14268 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 70491944 is about 8395.9480703492. The cubic root of 70491944 is about 413.0917254890.

The spelling of 70491944 in words is "seventy million, four hundred ninety-one thousand, nine hundred forty-four".