40726651 has 8 divisors (see below), whose sum is σ = 46972640. Its totient is φ = 34587648.

The previous prime is 40726649. The next prime is 40726657. The reversal of 40726651 is 15662704.

It is a happy number.

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 40726651 - 2¹ = 40726649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40726657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25926 + ... + 27451.

It is an arithmetic number, because the mean of its divisors is an integer number (5871580).

Almost surely, 2^40726651 is an apocalyptic number.

40726651 is a deficient number, since it is larger than the sum of its proper divisors (6245989).

40726651 is a wasteful number, since it uses less digits than its factorization.

40726651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53493.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 40726651 is about 6381.7435705299. The cubic root of 40726651 is about 344.0537002655.

The spelling of 40726651 in words is "forty million, seven hundred twenty-six thousand, six hundred fifty-one".