40767761 has 8 divisors (see below), whose sum is σ = 41623200. Its totient is φ = 39917920.

The previous prime is 40767743. The next prime is 40767763. The reversal of 40767761 is 16776704.

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 40767761 - 2¹⁸ = 40505617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40767763) 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, 15350 + ... + 17808.

It is an arithmetic number, because the mean of its divisors is an integer number (5202900).

Almost surely, 2^40767761 is an apocalyptic number.

It is an amenable number.

40767761 is a deficient number, since it is larger than the sum of its proper divisors (855439).

40767761 is a wasteful number, since it uses less digits than its factorization.

40767761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2799.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 40767761 is about 6384.9636647361. The cubic root of 40767761 is about 344.1694253978.

The spelling of 40767761 in words is "forty million, seven hundred sixty-seven thousand, seven hundred sixty-one".