442165653 has 12 divisors (see below), whose sum is σ = 640768128. Its totient is φ = 293815080.

The previous prime is 442165601. The next prime is 442165657. The reversal of 442165653 is 356561244.

442165653 is a `hidden beast` number, since 442 + 165 + 6 + 53 = 666.

It is not a de Polignac number, because 442165653 - 2⁶ = 442165589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442165657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77253 + ... + 82778.

It is an arithmetic number, because the mean of its divisors is an integer number (53397344).

Almost surely, 2^442165653 is an apocalyptic number.

It is an amenable number.

442165653 is a deficient number, since it is larger than the sum of its proper divisors (198602475).

442165653 is a wasteful number, since it uses less digits than its factorization.

442165653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160344 (or 160341 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 442165653 is about 21027.7353274194. The cubic root of 442165653 is about 761.8363103454.

The spelling of 442165653 in words is "four hundred forty-two million, one hundred sixty-five thousand, six hundred fifty-three".