1906232242 has 4 divisors (see below), whose sum is σ = 2859348366. Its totient is φ = 953116120.

The previous prime is 1906232233. The next prime is 1906232261. The reversal of 1906232242 is 2422326091.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1765596361 + 140635881 = 42019^2 + 11859^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 476558059 + ... + 476558062.

Almost surely, 2^1906232242 is an apocalyptic number.

1906232242 is a deficient number, since it is larger than the sum of its proper divisors (953116124).

1906232242 is an equidigital number, since it uses as much as digits as its factorization.

1906232242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953116123.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1906232242 is about 43660.4196269344. The cubic root of 1906232242 is about 1239.9150657226.

The spelling of 1906232242 in words is "one billion, nine hundred six million, two hundred thirty-two thousand, two hundred forty-two".