442266645 has 32 divisors (see below), whose sum is σ = 754092288. Its totient is φ = 220566528.

The previous prime is 442266637. The next prime is 442266659. The reversal of 442266645 is 546662244.

It is not a de Polignac number, because 442266645 - 2³ = 442266637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34512 + ... + 45558.

It is an arithmetic number, because the mean of its divisors is an integer number (23565384).

Almost surely, 2^442266645 is an apocalyptic number.

It is an amenable number.

442266645 is a deficient number, since it is larger than the sum of its proper divisors (311825643).

442266645 is a wasteful number, since it uses less digits than its factorization.

442266645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11229.

The product of its digits is 276480, while the sum is 39.

The square root of 442266645 is about 21030.1365901413. The cubic root of 442266645 is about 761.8943078517.

The spelling of 442266645 in words is "four hundred forty-two million, two hundred sixty-six thousand, six hundred forty-five".