40430626 has 16 divisors (see below), whose sum is σ = 62093304. Its totient is φ = 19736704.

The previous prime is 40430623. The next prime is 40430647. The reversal of 40430626 is 62603404.

It can be written as a sum of positive squares in 4 ways, for example, as 21949225 + 18481401 = 4685^2 + 4299^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40430626.

It is not an unprimeable number, because it can be changed into a prime (40430623) 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, 23880 + ... + 25516.

Almost surely, 2^40430626 is an apocalyptic number.

40430626 is a deficient number, since it is larger than the sum of its proper divisors (21662678).

40430626 is a wasteful number, since it uses less digits than its factorization.

40430626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 40430626 is about 6358.5081583655. The cubic root of 40430626 is about 343.2180782167.

The spelling of 40430626 in words is "forty million, four hundred thirty thousand, six hundred twenty-six".