40321736626 has 8 divisors (see below), whose sum is σ = 60551259804. Its totient is φ = 20137983360.

The previous prime is 40321736557. The next prime is 40321736629. The reversal of 40321736626 is 62663712304.

It can be written as a sum of positive squares in 2 ways, for example, as 31682220025 + 8639516601 = 177995^2 + 92949^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40321736629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11440275 + ... + 11443798.

Almost surely, 2^40321736626 is an apocalyptic number.

40321736626 is a deficient number, since it is larger than the sum of its proper divisors (20229523178).

40321736626 is a wasteful number, since it uses less digits than its factorization.

40321736626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22884956.

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 40321736626 in words is "forty billion, three hundred twenty-one million, seven hundred thirty-six thousand, six hundred twenty-six".