40408695146 has 8 divisors (see below), whose sum is σ = 60615885924. Its totient is φ = 20203399840.

The previous prime is 40408695127. The next prime is 40408695157. The reversal of 40408695146 is 64159680404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39463809025 + 944886121 = 198655^2 + 30739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40408695146² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40408695146.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419315 + ... + 506598.

Almost surely, 2^40408695146 is an apocalyptic number.

40408695146 is a deficient number, since it is larger than the sum of its proper divisors (20207190778).

40408695146 is a wasteful number, since it uses less digits than its factorization.

40408695146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947736.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 40408695146 in words is "forty billion, four hundred eight million, six hundred ninety-five thousand, one hundred forty-six".