40670738 has 8 divisors (see below), whose sum is σ = 61033932. Its totient is φ = 20326096.

The previous prime is 40670737. The next prime is 40670753. The reversal of 40670738 is 83707604.

It can be written as a sum of positive squares in 2 ways, for example, as 39476089 + 1194649 = 6283^2 + 1093^2 .

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

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 40670698 and 40670707.

It is not an unprimeable number, because it can be changed into a prime (40670737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4256 + ... + 9972.

Almost surely, 2^40670738 is an apocalyptic number.

40670738 is a deficient number, since it is larger than the sum of its proper divisors (20363194).

40670738 is a wasteful number, since it uses less digits than its factorization.

40670738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9276.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 40670738 is about 6377.3613665841. The cubic root of 40670738 is about 343.8961794593.

The spelling of 40670738 in words is "forty million, six hundred seventy thousand, seven hundred thirty-eight".