40919437 has 4 divisors (see below), whose sum is σ = 44067100. Its totient is φ = 37771776.

The previous prime is 40919419. The next prime is 40919479. The reversal of 40919437 is 73491904.

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 9771876 + 31147561 = 3126^2 + 5581^2 .

It is a cyclic number.

It is not a de Polignac number, because 40919437 - 2⁷ = 40919309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40919396 and 40919405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40913437) 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, 1573812 + ... + 1573837.

It is an arithmetic number, because the mean of its divisors is an integer number (11016775).

Almost surely, 2^40919437 is an apocalyptic number.

It is an amenable number.

40919437 is a deficient number, since it is larger than the sum of its proper divisors (3147663).

40919437 is a wasteful number, since it uses less digits than its factorization.

40919437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147662.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 40919437 is about 6396.8302306689. The cubic root of 40919437 is about 344.5957233244.

The spelling of 40919437 in words is "forty million, nine hundred nineteen thousand, four hundred thirty-seven".