40053779 has 4 divisors (see below), whose sum is σ = 40152120. Its totient is φ = 39955440.

The previous prime is 40053773. The next prime is 40053803. The reversal of 40053779 is 97735004.

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 40053779 - 2¹² = 40049683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40053773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48557 + ... + 49374.

It is an arithmetic number, because the mean of its divisors is an integer number (10038030).

Almost surely, 2^40053779 is an apocalyptic number.

40053779 is a deficient number, since it is larger than the sum of its proper divisors (98341).

40053779 is an equidigital number, since it uses as much as digits as its factorization.

40053779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98340.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 40053779 is about 6328.8054955102. The cubic root of 40053779 is about 342.1483886923.

The spelling of 40053779 in words is "forty million, fifty-three thousand, seven hundred seventy-nine".