40442077 has 4 divisors (see below), whose sum is σ = 43553020. Its totient is φ = 37331136.

The previous prime is 40442063. The next prime is 40442111. The reversal of 40442077 is 77024404.

40442077 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 can be written as a sum of positive squares in 2 ways, for example, as 9205156 + 31236921 = 3034^2 + 5589^2 .

It is a cyclic number.

It is not a de Polignac number, because 40442077 - 2¹⁵ = 40409309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40442057) 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, 1555452 + ... + 1555477.

It is an arithmetic number, because the mean of its divisors is an integer number (10888255).

Almost surely, 2^40442077 is an apocalyptic number.

It is an amenable number.

40442077 is a deficient number, since it is larger than the sum of its proper divisors (3110943).

40442077 is a wasteful number, since it uses less digits than its factorization.

40442077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110942.

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 40442077 is about 6359.4085416806. The cubic root of 40442077 is about 343.2504779065.

The spelling of 40442077 in words is "forty million, four hundred forty-two thousand, seventy-seven".