1990301842406 has 8 divisors (see below), whose sum is σ = 3088399410720. Its totient is φ = 960835372168.

The previous prime is 1990301842391. The next prime is 1990301842453. The reversal of 1990301842406 is 6042481030991.

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

It is a super-2 number, since 2×1990301842406² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17157774446 + ... + 17157774561.

It is an arithmetic number, because the mean of its divisors is an integer number (386049926340).

Almost surely, 2^{1990301842406} is an apocalyptic number.

1990301842406 is a deficient number, since it is larger than the sum of its proper divisors (1098097568314).

1990301842406 is a wasteful number, since it uses less digits than its factorization.

1990301842406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34315549038.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 1990301842406 in words is "one trillion, nine hundred ninety billion, three hundred one million, eight hundred forty-two thousand, four hundred six".