40121626 has 16 divisors (see below), whose sum is σ = 62281728. Its totient is φ = 19364400.

The previous prime is 40121617. The next prime is 40121629. The reversal of 40121626 is 62612104.

It is a junction number, because it is equal to n+sod(n) for n = 40121597 and 40121606.

It is not an unprimeable number, because it can be changed into a prime (40121629) 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 in 7 ways as a sum of consecutive naturals, for example, 39991 + ... + 40981.

It is an arithmetic number, because the mean of its divisors is an integer number (3892608).

Almost surely, 2^40121626 is an apocalyptic number.

40121626 is a deficient number, since it is larger than the sum of its proper divisors (22160102).

40121626 is a wasteful number, since it uses less digits than its factorization.

40121626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 40121626 is about 6334.1634017445. The cubic root of 40121626 is about 342.3414678257.

The spelling of 40121626 in words is "forty million, one hundred twenty-one thousand, six hundred twenty-six".