40070623 has 8 divisors (see below), whose sum is σ = 42438528. Its totient is φ = 37754904.

The previous prime is 40070621. The next prime is 40070629. The reversal of 40070623 is 32607004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40070623 - 2¹ = 40070621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40070594 and 40070603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40070621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11461 + ... + 14542.

It is an arithmetic number, because the mean of its divisors is an integer number (5304816).

Almost surely, 2^40070623 is an apocalyptic number.

40070623 is a deficient number, since it is larger than the sum of its proper divisors (2367905).

40070623 is a wasteful number, since it uses less digits than its factorization.

40070623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26093.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 40070623 is about 6330.1360964832. The cubic root of 40070623 is about 342.1963437162.

Adding to 40070623 its reverse (32607004), we get a palindrome (72677627).

The spelling of 40070623 in words is "forty million, seventy thousand, six hundred twenty-three".