842437485 has 24 divisors (see below), whose sum is σ = 1537080480. Its totient is φ = 425652192.

The previous prime is 842437483. The next prime is 842437517. The reversal of 842437485 is 584734248.

It is a happy number.

It is not a de Polignac number, because 842437485 - 2¹ = 842437483 is a prime.

It is a super-2 number, since 2×842437485² = 1419401832266250450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 842437485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842437481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 491799 + ... + 493508.

It is an arithmetic number, because the mean of its divisors is an integer number (64045020).

Almost surely, 2^842437485 is an apocalyptic number.

It is an amenable number.

842437485 is a deficient number, since it is larger than the sum of its proper divisors (694642995).

842437485 is a wasteful number, since it uses less digits than its factorization.

842437485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985337 (or 985334 counting only the distinct ones).

The product of its digits is 860160, while the sum is 45.

The square root of 842437485 is about 29024.7736425282. The cubic root of 842437485 is about 944.4505582406.

The spelling of 842437485 in words is "eight hundred forty-two million, four hundred thirty-seven thousand, four hundred eighty-five".