442880493 has 16 divisors (see below), whose sum is σ = 648055296. Its totient is φ = 266801840.

The previous prime is 442880423. The next prime is 442880497. The reversal of 442880493 is 394088244.

It is a cyclic number.

It is not a de Polignac number, because 442880493 - 2¹³ = 442872301 is a prime.

It is a super-2 number, since 2×442880493² = 392286262159846098, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442880497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34671 + ... + 45692.

It is an arithmetic number, because the mean of its divisors is an integer number (40503456).

Almost surely, 2^442880493 is an apocalyptic number.

It is an amenable number.

442880493 is a deficient number, since it is larger than the sum of its proper divisors (205174803).

442880493 is a wasteful number, since it uses less digits than its factorization.

442880493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80544.

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 442880493 is about 21044.7260138972. The cubic root of 442880493 is about 762.2466375997.

The spelling of 442880493 in words is "four hundred forty-two million, eight hundred eighty thousand, four hundred ninety-three".