40421126 has 4 divisors (see below), whose sum is σ = 60631692. Its totient is φ = 20210562.

The previous prime is 40421123. The next prime is 40421137. The reversal of 40421126 is 62112404.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40421098 and 40421107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40421123) 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 as a sum of consecutive naturals, namely, 10105280 + ... + 10105283.

It is an arithmetic number, because the mean of its divisors is an integer number (15157923).

Almost surely, 2^40421126 is an apocalyptic number.

40421126 is a deficient number, since it is larger than the sum of its proper divisors (20210566).

40421126 is a wasteful number, since it uses less digits than its factorization.

40421126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20210565.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 40421126 is about 6357.7610839037. The cubic root of 40421126 is about 343.1911940822.

The spelling of 40421126 in words is "forty million, four hundred twenty-one thousand, one hundred twenty-six".