70944638 has 16 divisors (see below), whose sum is σ = 113735664. Its totient is φ = 33072000.

The previous prime is 70944623. The next prime is 70944683. The reversal of 70944638 is 83644907.

It is a junction number, because it is equal to n+sod(n) for n = 70944595 and 70944604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6113 + ... + 13388.

It is an arithmetic number, because the mean of its divisors is an integer number (7108479).

Almost surely, 2^70944638 is an apocalyptic number.

70944638 is a deficient number, since it is larger than the sum of its proper divisors (42791026).

70944638 is a wasteful number, since it uses less digits than its factorization.

70944638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19627.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 70944638 is about 8422.8640022263. The cubic root of 70944638 is about 413.9741206878.

The spelling of 70944638 in words is "seventy million, nine hundred forty-four thousand, six hundred thirty-eight".