40405126 has 16 divisors (see below), whose sum is σ = 61462800. Its totient is φ = 19919520.

The previous prime is 40405117. The next prime is 40405139. The reversal of 40405126 is 62150404.

It is a junction number, because it is equal to n+sod(n) for n = 40405097 and 40405106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74416 + ... + 74956.

It is an arithmetic number, because the mean of its divisors is an integer number (3841425).

Almost surely, 2^40405126 is an apocalyptic number.

40405126 is a deficient number, since it is larger than the sum of its proper divisors (21057674).

40405126 is a wasteful number, since it uses less digits than its factorization.

40405126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 40405126 is about 6356.5026547623. The cubic root of 40405126 is about 343.1459060169.

The spelling of 40405126 in words is "forty million, four hundred five thousand, one hundred twenty-six".