40767732 has 48 divisors (see below), whose sum is σ = 106254400. Its totient is φ = 13517280.

The previous prime is 40767731. The next prime is 40767743. The reversal of 40767732 is 23776704.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40767731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21894 + ... + 23682.

Almost surely, 2^40767732 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40767732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53127200).

40767732 is an abundant number, since it is smaller than the sum of its proper divisors (65486668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40767732 is a wasteful number, since it uses less digits than its factorization.

40767732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013 (or 2005 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 40767732 is about 6384.9613937752. The cubic root of 40767732 is about 344.1693437899.

The spelling of 40767732 in words is "forty million, seven hundred sixty-seven thousand, seven hundred thirty-two".