1994719122 has 150 divisors (see below), whose sum is σ = 5091966165. Its totient is φ = 583616880.

The previous prime is 1994719117. The next prime is 1994719127. The reversal of 1994719122 is 2219174991.

It is a happy number.

1994719122 is a `hidden beast` number, since 1 + 99 + 471 + 91 + 2 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1994719117) and next prime (1994719127).

It can be written as a sum of positive squares in 2 ways, for example, as 1993533201 + 1185921 = 44649^2 + 1089^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=31581.

It is not an unprimeable number, because it can be changed into a prime (1994719127) by changing a digit.

It is a polite number, since it can be written in 74 ways as a sum of consecutive naturals, for example, 68783404 + ... + 68783432.

Almost surely, 2^1994719122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1994719122

1994719122 is an abundant number, since it is smaller than the sum of its proper divisors (3097247043).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1994719122 is an frugal number, since it uses more digits than its factorization.

1994719122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 45 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 1994719122 is about 44662.2785133047. The cubic root of 1994719122 is about 1258.8111575609.

The spelling of 1994719122 in words is "one billion, nine hundred ninety-four million, seven hundred nineteen thousand, one hundred twenty-two".