19940132350 has 24 divisors (see below), whose sum is σ = 39040682040. Its totient is φ = 7556260320.

The previous prime is 19940132341. The next prime is 19940132351. The reversal of 19940132350 is 5323104991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19940132351) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 10493857 + ... + 10495756.

It is an arithmetic number, because the mean of its divisors is an integer number (1626695085).

Almost surely, 2^19940132350 is an apocalyptic number.

19940132350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19940132350 is a deficient number, since it is larger than the sum of its proper divisors (19100549690).

19940132350 is a wasteful number, since it uses less digits than its factorization.

19940132350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20989644 (or 20989639 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 37.

The spelling of 19940132350 in words is "nineteen billion, nine hundred forty million, one hundred thirty-two thousand, three hundred fifty".