40055423 has 4 divisors (see below), whose sum is σ = 41138040. Its totient is φ = 38972808.

The previous prime is 40055369. The next prime is 40055437. The reversal of 40055423 is 32455004.

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 40055423 - 2⁶ = 40055359 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 (40055453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541253 + ... + 541326.

It is an arithmetic number, because the mean of its divisors is an integer number (10284510).

Almost surely, 2^40055423 is an apocalyptic number.

40055423 is a deficient number, since it is larger than the sum of its proper divisors (1082617).

40055423 is a wasteful number, since it uses less digits than its factorization.

40055423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082616.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 40055423 is about 6328.9353765069. The cubic root of 40055423 is about 342.1530697675.

The spelling of 40055423 in words is "forty million, fifty-five thousand, four hundred twenty-three".