40306400626 has 16 divisors (see below), whose sum is σ = 61461666648. Its totient is φ = 19819296000.

The previous prime is 40306400609. The next prime is 40306400677. The reversal of 40306400626 is 62600460304.

It can be written as a sum of positive squares in 4 ways, for example, as 31969797601 + 8336603025 = 178801^2 + 91305^2 .

It is a super-2 number, since 2×40306400626² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742506 + ... + 794938.

Almost surely, 2^40306400626 is an apocalyptic number.

40306400626 is a deficient number, since it is larger than the sum of its proper divisors (21155266022).

40306400626 is a wasteful number, since it uses less digits than its factorization.

40306400626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58797.

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 40306400626 in words is "forty billion, three hundred six million, four hundred thousand, six hundred twenty-six".