146240390990 has 16 divisors (see below), whose sum is σ = 263246311152. Its totient is φ = 58493132544.

The previous prime is 146240390953. The next prime is 146240391041. The reversal of 146240390990 is 99093042641.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169379 + ... + 566718.

It is an arithmetic number, because the mean of its divisors is an integer number (16452894447).

Almost surely, 2^146240390990 is an apocalyptic number.

146240390990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146240390990 is a deficient number, since it is larger than the sum of its proper divisors (117005920162).

146240390990 is a wasteful number, since it uses less digits than its factorization.

146240390990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755971.

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 146240390990 in words is "one hundred forty-six billion, two hundred forty million, three hundred ninety thousand, nine hundred ninety".