1999019342 has 16 divisors (see below), whose sum is σ = 3052380672. Its totient is φ = 981666840.

The previous prime is 1999019327. The next prime is 1999019353. The reversal of 1999019342 is 2439109991.

It is a super-2 number, since 2×1999019342² = 7992156659380225928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10583 + ... + 64109.

It is an arithmetic number, because the mean of its divisors is an integer number (190773792).

Almost surely, 2^1999019342 is an apocalyptic number.

1999019342 is a deficient number, since it is larger than the sum of its proper divisors (1053361330).

1999019342 is a wasteful number, since it uses less digits than its factorization.

1999019342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53863.

The product of its (nonzero) digits is 157464, while the sum is 47.

The square root of 1999019342 is about 44710.3941159100. The cubic root of 1999019342 is about 1259.7150909525.

The spelling of 1999019342 in words is "one billion, nine hundred ninety-nine million, nineteen thousand, three hundred forty-two".