1409406840634 has 8 divisors (see below), whose sum is σ = 2276734127220. Its totient is φ = 650495464896.

The previous prime is 1409406840571. The next prime is 1409406840643. The reversal of 1409406840634 is 4360486049041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1392171089409 + 17235751225 = 1179903^2 + 131285^2 .

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

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, 27103977679 + ... + 27103977730.

Almost surely, 2^{1409406840634} is an apocalyptic number.

1409406840634 is a deficient number, since it is larger than the sum of its proper divisors (867327286586).

1409406840634 is a wasteful number, since it uses less digits than its factorization.

1409406840634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54207955424.

The product of its (nonzero) digits is 1990656, while the sum is 49.

The spelling of 1409406840634 in words is "one trillion, four hundred nine billion, four hundred six million, eight hundred forty thousand, six hundred thirty-four".