40779459 has 12 divisors (see below), whose sum is σ = 67318576. Its totient is φ = 23302512.

The previous prime is 40779433. The next prime is 40779463. The reversal of 40779459 is 95497704.

It is not a de Polignac number, because 40779459 - 2⁷ = 40779331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40779059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 323584 + ... + 323709.

Almost surely, 2^40779459 is an apocalyptic number.

40779459 is a deficient number, since it is larger than the sum of its proper divisors (26539117).

40779459 is a wasteful number, since it uses less digits than its factorization.

40779459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647306 (or 647303 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 40779459 is about 6385.8796574943. The cubic root of 40779459 is about 344.2023411856.

The spelling of 40779459 in words is "forty million, seven hundred seventy-nine thousand, four hundred fifty-nine".