40772730 has 16 divisors (see below), whose sum is σ = 97854624. Its totient is φ = 10872720.

The previous prime is 40772723. The next prime is 40772789. The reversal of 40772730 is 3727704.

It is a happy number.

40772730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1359091 = 40772730 / (4 + 0 + 7 + 7 + 2 + 7 + 3 + 0).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 679516 + ... + 679575.

It is an arithmetic number, because the mean of its divisors is an integer number (6115914).

Almost surely, 2^40772730 is an apocalyptic number.

40772730 is an abundant number, since it is smaller than the sum of its proper divisors (57081894).

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

40772730 is a wasteful number, since it uses less digits than its factorization.

40772730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359101.

The product of its (nonzero) digits is 8232, while the sum is 30.

The square root of 40772730 is about 6385.3527702078. The cubic root of 40772730 is about 344.1834079202.

It can be divided in two parts, 407 and 72730, that added together give a palindrome (73137).

The spelling of 40772730 in words is "forty million, seven hundred seventy-two thousand, seven hundred thirty".