1900006284394 has 4 divisors (see below), whose sum is σ = 2850009426594. Its totient is φ = 950003142196.

The previous prime is 1900006284361. The next prime is 1900006284433. The reversal of 1900006284394 is 4934826000091.

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., 1710306837369 + 189699447025 = 1307787^2 + 435545^2 .

It is a super-2 number, since 2×1900006284394² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 475001571097 + ... + 475001571100.

Almost surely, 2^{1900006284394} is an apocalyptic number.

1900006284394 is a deficient number, since it is larger than the sum of its proper divisors (950003142200).

1900006284394 is an equidigital number, since it uses as much as digits as its factorization.

1900006284394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950003142199.

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 1900006284394 in words is "one trillion, nine hundred billion, six million, two hundred eighty-four thousand, three hundred ninety-four".