70440106438 has 48 divisors (see below), whose sum is σ = 117718021008. Its totient is φ = 31424328000.

The previous prime is 70440106427. The next prime is 70440106439. The reversal of 70440106438 is 83460104407.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 70440106397 and 70440106406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70440106439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37053288 + ... + 37055188.

It is an arithmetic number, because the mean of its divisors is an integer number (2452458771).

Almost surely, 2^70440106438 is an apocalyptic number.

70440106438 is a deficient number, since it is larger than the sum of its proper divisors (47277914570).

70440106438 is a wasteful number, since it uses less digits than its factorization.

70440106438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3461 (or 3430 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 70440106438 in words is "seventy billion, four hundred forty million, one hundred six thousand, four hundred thirty-eight".