18070944 has 48 divisors (see below), whose sum is σ = 49079520. Its totient is φ = 5815040.

The previous prime is 18070891. The next prime is 18070963. The reversal of 18070944 is 44907081.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×18070944² = 653118034102272, which contains 22 as substring.

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, 462 + ... + 6029.

It is an arithmetic number, because the mean of its divisors is an integer number (1022490).

Almost surely, 2^18070944 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 18070944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24539760).

18070944 is an abundant number, since it is smaller than the sum of its proper divisors (31008576).

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

18070944 is a wasteful number, since it uses less digits than its factorization.

18070944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6533 (or 6525 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 18070944 is about 4250.9932956898. The cubic root of 18070944 is about 262.4179952461.

The spelling of 18070944 in words is "eighteen million, seventy thousand, nine hundred forty-four".