40424406 has 24 divisors (see below), whose sum is σ = 88868472. Its totient is φ = 12249600.

The previous prime is 40424399. The next prime is 40424411. The reversal of 40424406 is 60442404.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27115 + ... + 28566.

It is an arithmetic number, because the mean of its divisors is an integer number (3702853).

Almost surely, 2^40424406 is an apocalyptic number.

40424406 is an abundant number, since it is smaller than the sum of its proper divisors (48444066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40424406 is a wasteful number, since it uses less digits than its factorization.

40424406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55708 (or 55697 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 40424406 is about 6358.0190311134. The cubic root of 40424406 is about 343.2004766594.

It can be divided in two parts, 4042 and 4406, that added together give a palindrome (8448).

The spelling of 40424406 in words is "forty million, four hundred twenty-four thousand, four hundred six".