40092779 has 4 divisors (see below), whose sum is σ = 40176960. Its totient is φ = 40008600.

The previous prime is 40092763. The next prime is 40092781. The reversal of 40092779 is 97729004.

It is a happy number.

40092779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40092779 - 2⁴ = 40092763 is a prime.

It is a super-3 number, since 3×40092779³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40092079) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 41372 + ... + 42329.

It is an arithmetic number, because the mean of its divisors is an integer number (10044240).

Almost surely, 2^40092779 is an apocalyptic number.

40092779 is a deficient number, since it is larger than the sum of its proper divisors (84181).

40092779 is an equidigital number, since it uses as much as digits as its factorization.

40092779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84180.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 40092779 is about 6331.8858960029. The cubic root of 40092779 is about 342.2594015932.

The spelling of 40092779 in words is "forty million, ninety-two thousand, seven hundred seventy-nine".