1930997042 has 24 divisors (see below), whose sum is σ = 3168830196. Its totient is φ = 882026496.

The previous prime is 1930997023. The next prime is 1930997069. The reversal of 1930997042 is 2407990391.

It can be written as a sum of positive squares in 6 ways, for example, as 53421481 + 1877575561 = 7309^2 + 43331^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1930996984 and 1930997002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3338 + ... + 62234.

Almost surely, 2^1930997042 is an apocalyptic number.

1930997042 is a deficient number, since it is larger than the sum of its proper divisors (1237833154).

1930997042 is a wasteful number, since it uses less digits than its factorization.

1930997042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59022 (or 59009 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 1930997042 is about 43943.1114283001. Note that the first 3 decimals coincide. The cubic root of 1930997042 is about 1245.2614284101.

The spelling of 1930997042 in words is "one billion, nine hundred thirty million, nine hundred ninety-seven thousand, forty-two".