42660369 has 12 divisors (see below), whose sum is σ = 62030592. Its totient is φ = 28251000.

The previous prime is 42660323. The next prime is 42660407. The reversal of 42660369 is 96306624.

42660369 is a `hidden beast` number, since 42 + 6 + 603 + 6 + 9 = 666.

It is not a de Polignac number, because 42660369 - 2⁸ = 42660113 is a prime.

It is a super-2 number, since 2×42660369² = 3639814166432322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42660169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14337 + ... + 17054.

It is an arithmetic number, because the mean of its divisors is an integer number (5169216).

Almost surely, 2^42660369 is an apocalyptic number.

It is an amenable number.

42660369 is a deficient number, since it is larger than the sum of its proper divisors (19370223).

42660369 is a wasteful number, since it uses less digits than its factorization.

42660369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31548 (or 31545 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 42660369 is about 6531.4905649476. The cubic root of 42660369 is about 349.4149928030.

The spelling of 42660369 in words is "forty-two million, six hundred sixty thousand, three hundred sixty-nine".