42152666 has 8 divisors (see below), whose sum is σ = 63389460. Its totient is φ = 21022848.

The previous prime is 42152651. The next prime is 42152683. The reversal of 42152666 is 66625124.

It can be written as a sum of positive squares in 2 ways, for example, as 40896025 + 1256641 = 6395^2 + 1121^2 .

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

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, 25751 + ... + 27338.

Almost surely, 2^42152666 is an apocalyptic number.

42152666 is a deficient number, since it is larger than the sum of its proper divisors (21236794).

42152666 is a wasteful number, since it uses less digits than its factorization.

42152666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53488.

The product of its digits is 17280, while the sum is 32.

The square root of 42152666 is about 6492.5084520546. The cubic root of 42152666 is about 348.0233227422.

The spelling of 42152666 in words is "forty-two million, one hundred fifty-two thousand, six hundred sixty-six".