40424427 has 10 divisors (see below), whose sum is σ = 60387228. Its totient is φ = 26949564.

The previous prime is 40424411. The next prime is 40424431. The reversal of 40424427 is 72442404.

It is not a de Polignac number, because 40424427 - 2⁴ = 40424411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 40424427.

It is not an unprimeable number, because it can be changed into a prime (40424467) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 249453 + ... + 249614.

Almost surely, 2^40424427 is an apocalyptic number.

40424427 is a deficient number, since it is larger than the sum of its proper divisors (19962801).

40424427 is an equidigital number, since it uses as much as digits as its factorization.

40424427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499079 (or 499070 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 27.

The square root of 40424427 is about 6358.0206825710. The cubic root of 40424427 is about 343.2005360889.

The spelling of 40424427 in words is "forty million, four hundred twenty-four thousand, four hundred twenty-seven".