424285640 has 16 divisors (see below), whose sum is σ = 954642780. Its totient is φ = 169714240.

The previous prime is 424285639. The next prime is 424285649. The reversal of 424285640 is 46582424.

It can be written as a sum of positive squares in 2 ways, for example, as 385022884 + 39262756 = 19622^2 + 6266^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 424285640.

It is not an unprimeable number, because it can be changed into a prime (424285649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5303531 + ... + 5303610.

Almost surely, 2^424285640 is an apocalyptic number.

424285640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424285640 is an abundant number, since it is smaller than the sum of its proper divisors (530357140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

424285640 is a wasteful number, since it uses less digits than its factorization.

424285640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10607152 (or 10607148 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The square root of 424285640 is about 20598.1950665586. The cubic root of 424285640 is about 751.4258150915.

The spelling of 424285640 in words is "four hundred twenty-four million, two hundred eighty-five thousand, six hundred forty".