40412779 has 8 divisors (see below), whose sum is σ = 44186688. Its totient is φ = 36655560.

The previous prime is 40412773. The next prime is 40412789. The reversal of 40412779 is 97721404.

40412779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40412779 - 2¹³ = 40404587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40412773) 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 7 ways as a sum of consecutive naturals, for example, 1204 + ... + 9070.

It is an arithmetic number, because the mean of its divisors is an integer number (5523336).

Almost surely, 2^40412779 is an apocalyptic number.

40412779 is a deficient number, since it is larger than the sum of its proper divisors (3773909).

40412779 is a wasteful number, since it uses less digits than its factorization.

40412779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8345.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 40412779 is about 6357.1046082316. The cubic root of 40412779 is about 343.1675693560.

The spelling of 40412779 in words is "forty million, four hundred twelve thousand, seven hundred seventy-nine".