1566306242 has 8 divisors (see below), whose sum is σ = 2349929232. Its totient is φ = 782996500.

The previous prime is 1566306227. The next prime is 1566306253. The reversal of 1566306242 is 2426036651.

It is a happy number.

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

It is a super-4 number, since 4×1566306242⁴ (a number of 38 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65384 + ... + 86067.

It is an arithmetic number, because the mean of its divisors is an integer number (293741154).

Almost surely, 2^1566306242 is an apocalyptic number.

1566306242 is a deficient number, since it is larger than the sum of its proper divisors (783622990).

1566306242 is a wasteful number, since it uses less digits than its factorization.

1566306242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156624.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 1566306242 is about 39576.5870433518. The cubic root of 1566306242 is about 1161.3386848920.

The spelling of 1566306242 in words is "one billion, five hundred sixty-six million, three hundred six thousand, two hundred forty-two".