1974040290946 has 4 divisors (see below), whose sum is σ = 2961060436422. Its totient is φ = 987020145472.

The previous prime is 1974040290931. The next prime is 1974040290967. The reversal of 1974040290946 is 6490920404791.

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., 1971668113921 + 2372177025 = 1404161^2 + 48705^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493510072735 + ... + 493510072738.

Almost surely, 2^{1974040290946} is an apocalyptic number.

1974040290946 is a deficient number, since it is larger than the sum of its proper divisors (987020145476).

1974040290946 is an equidigital number, since it uses as much as digits as its factorization.

1974040290946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987020145475.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 1974040290946 in words is "one trillion, nine hundred seventy-four billion, forty million, two hundred ninety thousand, nine hundred forty-six".