424684140 has 96 divisors (see below), whose sum is σ = 1263729600. Its totient is φ = 106192896.

The previous prime is 424684111. The next prime is 424684147. The reversal of 424684140 is 41486424.

It is not an unprimeable number, because it can be changed into a prime (424684147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355384 + ... + 356576.

It is an arithmetic number, because the mean of its divisors is an integer number (13163850).

Almost surely, 2^424684140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424684140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (631864800).

424684140 is an abundant number, since it is smaller than the sum of its proper divisors (839045460).

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

424684140 is a wasteful number, since it uses less digits than its factorization.

424684140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571 (or 1569 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 424684140 is about 20607.8659739431. The cubic root of 424684140 is about 751.6609943039.

The spelling of 424684140 in words is "four hundred twenty-four million, six hundred eighty-four thousand, one hundred forty".