40306035206138 has 32 divisors (see below), whose sum is σ = 66704176440720. Its totient is φ = 18147321699840.

The previous prime is 40306035206131. The next prime is 40306035206149. The reversal of 40306035206138 is 83160253060304.

It can be written as a sum of positive squares in 8 ways, for example, as 9368110983169 + 30937924222969 = 3060737^2 + 5562187^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a junction number, because it is equal to n+sod(n) for n = 40306035206095 and 40306035206104.

It is not an unprimeable number, because it can be changed into a prime (40306035206131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9364028 + ... + 12972936.

Almost surely, 2^{40306035206138} is an apocalyptic number.

40306035206138 is a deficient number, since it is larger than the sum of its proper divisors (26398141234582).

40306035206138 is a wasteful number, since it uses less digits than its factorization.

40306035206138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3619442.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 40306035206138 in words is "forty trillion, three hundred six billion, thirty-five million, two hundred six thousand, one hundred thirty-eight".