40726961 has 8 divisors (see below), whose sum is σ = 44551200. Its totient is φ = 36923040.

The previous prime is 40726943. The next prime is 40726967. The reversal of 40726961 is 16962704.

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

It is a de Polignac number, because none of the positive numbers 2^k-40726961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40726967) 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, 716 + ... + 9053.

It is an arithmetic number, because the mean of its divisors is an integer number (5568900).

Almost surely, 2^40726961 is an apocalyptic number.

It is an amenable number.

40726961 is a deficient number, since it is larger than the sum of its proper divisors (3824239).

40726961 is a wasteful number, since it uses less digits than its factorization.

40726961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10159.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 40726961 is about 6381.7678585169. The cubic root of 40726961 is about 344.0545732105.

The spelling of 40726961 in words is "forty million, seven hundred twenty-six thousand, nine hundred sixty-one".