42284479 has 6 divisors (see below), whose sum is σ = 42687960. Its totient is φ = 41884776.

The previous prime is 42284477. The next prime is 42284483. The reversal of 42284479 is 97448224.

It is not a de Polignac number, because 42284479 - 2¹ = 42284477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42284471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10102 + ... + 13660.

It is an arithmetic number, because the mean of its divisors is an integer number (7114660).

Almost surely, 2^42284479 is an apocalyptic number.

42284479 is a deficient number, since it is larger than the sum of its proper divisors (403481).

42284479 is an equidigital number, since it uses as much as digits as its factorization.

42284479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3777 (or 3668 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 42284479 is about 6502.6516898877. The cubic root of 42284479 is about 348.3857060258.

The spelling of 42284479 in words is "forty-two million, two hundred eighty-four thousand, four hundred seventy-nine".