1906020242 has 8 divisors (see below), whose sum is σ = 3267463296. Its totient is φ = 816865812.

The previous prime is 1906020241. The next prime is 1906020251. The reversal of 1906020242 is 2420206091.

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

It is not an unprimeable number, because it can be changed into a prime (1906020241) 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 3 ways as a sum of consecutive naturals, for example, 68072138 + ... + 68072165.

It is an arithmetic number, because the mean of its divisors is an integer number (408432912).

Almost surely, 2^1906020242 is an apocalyptic number.

1906020242 is a deficient number, since it is larger than the sum of its proper divisors (1361443054).

1906020242 is a wasteful number, since it uses less digits than its factorization.

1906020242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136144312.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1906020242 is about 43657.9917311825. The cubic root of 1906020242 is about 1239.8690986515.

The spelling of 1906020242 in words is "one billion, nine hundred six million, twenty thousand, two hundred forty-two".