1974842566 has 8 divisors (see below), whose sum is σ = 2962457064. Its totient is φ = 987356880.

The previous prime is 1974842563. The next prime is 1974842567. The reversal of 1974842566 is 6652484791.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1974842563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30706 + ... + 69946.

It is an arithmetic number, because the mean of its divisors is an integer number (370307133).

Almost surely, 2^1974842566 is an apocalyptic number.

1974842566 is a deficient number, since it is larger than the sum of its proper divisors (987614498).

1974842566 is a wasteful number, since it uses less digits than its factorization.

1974842566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64406.

The product of its digits is 2903040, while the sum is 52.

The square root of 1974842566 is about 44439.2007803921. The cubic root of 1974842566 is about 1254.6160136981.

The spelling of 1974842566 in words is "one billion, nine hundred seventy-four million, eight hundred forty-two thousand, five hundred sixty-six".