42920469 has 8 divisors (see below), whose sum is σ = 63585920. Its totient is φ = 28613628.

The previous prime is 42920459. The next prime is 42920477. The reversal of 42920469 is 96402924.

42920469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42920469 - 2⁴ = 42920453 is a prime.

It is a super-2 number, since 2×42920469² = 3684333318359922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42920419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 794797 + ... + 794850.

It is an arithmetic number, because the mean of its divisors is an integer number (7948240).

Almost surely, 2^42920469 is an apocalyptic number.

It is an amenable number.

42920469 is a deficient number, since it is larger than the sum of its proper divisors (20665451).

42920469 is a wasteful number, since it uses less digits than its factorization.

42920469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589656 (or 1589650 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 42920469 is about 6551.3715357931. The cubic root of 42920469 is about 350.1236814589.

The spelling of 42920469 in words is "forty-two million, nine hundred twenty thousand, four hundred sixty-nine".