42800465 has 4 divisors (see below), whose sum is σ = 51360564. Its totient is φ = 34240368.

The previous prime is 42800449. The next prime is 42800473. The reversal of 42800465 is 56400824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31618129 + 11182336 = 5623^2 + 3344^2 .

It is a cyclic number.

It is not a de Polignac number, because 42800465 - 2⁴ = 42800449 is a prime.

It is a super-3 number, since 3×42800465³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4280042 + ... + 4280051.

It is an arithmetic number, because the mean of its divisors is an integer number (12840141).

Almost surely, 2^42800465 is an apocalyptic number.

It is an amenable number.

42800465 is a deficient number, since it is larger than the sum of its proper divisors (8560099).

42800465 is an equidigital number, since it uses as much as digits as its factorization.

42800465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8560098.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 42800465 is about 6542.2064320839. The cubic root of 42800465 is about 349.7970660328.

The spelling of 42800465 in words is "forty-two million, eight hundred thousand, four hundred sixty-five".